Finding the Fourth Proportional to 2,665,145.80, 3,995,094.30 and 1,317,516.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665,145.80 : 3,995,094.30 = 1,317,516.40 : x
2. Step 2: Convert to fraction form
   2,665,145.80/3,995,094.30 = 1,317,516.40/x
3. Step 3: Cross multiply
   2,665,145.80x = 3,995,094.30 × 1,317,516.40
4. Step 4: Simplify right side
   2,665,145.80x = 5,263,602,259,796.52
5. Step 5: Solve for x
   x = 5,263,602,259,796.52/2,665,145.80
6. Step 6: Final answer
   x = 1,974,977.23