Finding the Fourth Proportional to 1,003,128.72, 1,504,807.22 and 363,733.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003,128.72 : 1,504,807.22 = 363,733.62 : x
2. Step 2: Convert to fraction form
   1,003,128.72/1,504,807.22 = 363,733.62/x
3. Step 3: Cross multiply
   1,003,128.72x = 1,504,807.22 × 363,733.62
4. Step 4: Simplify right side
   1,003,128.72x = 547,348,977,532.74
5. Step 5: Solve for x
   x = 547,348,977,532.74/1,003,128.72
6. Step 6: Final answer
   x = 545,641.82