Finding the Fourth Proportional to 2,139,598.28, 3,209,595.22 and 773,712.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,598.28 : 3,209,595.22 = 773,712.88 : x
2. Step 2: Convert to fraction form
   2,139,598.28/3,209,595.22 = 773,712.88/x
3. Step 3: Cross multiply
   2,139,598.28x = 3,209,595.22 × 773,712.88
4. Step 4: Simplify right side
   2,139,598.28x = 2,483,305,161,300.43
5. Step 5: Solve for x
   x = 2,483,305,161,300.43/2,139,598.28
6. Step 6: Final answer
   x = 1,160,640.85