Finding the Fourth Proportional to 1,665,698,691.99, 2,483,656,251.72 and 1,619,934,646.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,698,691.99 : 2,483,656,251.72 = 1,619,934,646.88 : x
2. Step 2: Convert to fraction form
   1,665,698,691.99/2,483,656,251.72 = 1,619,934,646.88/x
3. Step 3: Cross multiply
   1,665,698,691.99x = 2,483,656,251.72 × 1,619,934,646.88
4. Step 4: Simplify right side
   1,665,698,691.99x = 4,023,360,813,101,395,456
5. Step 5: Solve for x
   x = 4,023,360,813,101,395,456/1,665,698,691.99
6. Step 6: Final answer
   x = 2,415,419,326.70