Finding the Fourth Proportional to 915,146.30, 1,373,095.69 and 402,547.52

Step by Step Solution

1. Step 1: Write the proportion equation
   915,146.30 : 1,373,095.69 = 402,547.52 : x
2. Step 2: Convert to fraction form
   915,146.30/1,373,095.69 = 402,547.52/x
3. Step 3: Cross multiply
   915,146.30x = 1,373,095.69 × 402,547.52
4. Step 4: Simplify right side
   915,146.30x = 552,736,264,732.19
5. Step 5: Solve for x
   x = 552,736,264,732.19/915,146.30
6. Step 6: Final answer
   x = 603,986.78