Finding the Fourth Proportional to 1,584,980.10, 2,187,272.52 and 905,931.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584,980.10 : 2,187,272.52 = 905,931.18 : x
2. Step 2: Convert to fraction form
   1,584,980.10/2,187,272.52 = 905,931.18/x
3. Step 3: Cross multiply
   1,584,980.10x = 2,187,272.52 × 905,931.18
4. Step 4: Simplify right side
   1,584,980.10x = 1,981,518,375,025.17
5. Step 5: Solve for x
   x = 1,981,518,375,025.17/1,584,980.10
6. Step 6: Final answer
   x = 1,250,185.02