Finding the Fourth Proportional to 897,808.86, 1,347,598.89 and 477,084.06

Step by Step Solution

1. Step 1: Write the proportion equation
   897,808.86 : 1,347,598.89 = 477,084.06 : x
2. Step 2: Convert to fraction form
   897,808.86/1,347,598.89 = 477,084.06/x
3. Step 3: Cross multiply
   897,808.86x = 1,347,598.89 × 477,084.06
4. Step 4: Simplify right side
   897,808.86x = 642,917,949,692.69
5. Step 5: Solve for x
   x = 642,917,949,692.69/897,808.86
6. Step 6: Final answer
   x = 716,096.69