Finding the Fourth Proportional to 788,105.32, 1,087,506.81 and 443,931.66

Step by Step Solution

1. Step 1: Write the proportion equation
   788,105.32 : 1,087,506.81 = 443,931.66 : x
2. Step 2: Convert to fraction form
   788,105.32/1,087,506.81 = 443,931.66/x
3. Step 3: Cross multiply
   788,105.32x = 1,087,506.81 × 443,931.66
4. Step 4: Simplify right side
   788,105.32x = 482,778,703,424.61
5. Step 5: Solve for x
   x = 482,778,703,424.61/788,105.32
6. Step 6: Final answer
   x = 612,581.45