Finding the Fourth Proportional to 1,117,323.50, 1,676,142.86 and 358,910.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117,323.50 : 1,676,142.86 = 358,910.73 : x
2. Step 2: Convert to fraction form
   1,117,323.50/1,676,142.86 = 358,910.73/x
3. Step 3: Cross multiply
   1,117,323.50x = 1,676,142.86 × 358,910.73
4. Step 4: Simplify right side
   1,117,323.50x = 601,585,655,672.33
5. Step 5: Solve for x
   x = 601,585,655,672.33/1,117,323.50
6. Step 6: Final answer
   x = 538,416.72