Finding the Fourth Proportional to 1,244,499.84, 1,866,728.16 and 403,053.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,244,499.84 : 1,866,728.16 = 403,053.12 : x
2. Step 2: Convert to fraction form
   1,244,499.84/1,866,728.16 = 403,053.12/x
3. Step 3: Cross multiply
   1,244,499.84x = 1,866,728.16 × 403,053.12
4. Step 4: Simplify right side
   1,244,499.84x = 752,390,609,079.86
5. Step 5: Solve for x
   x = 752,390,609,079.86/1,244,499.84
6. Step 6: Final answer
   x = 604,572.68