Finding the Fourth Proportional to 881,051, 1,215,851.46 and 478,643

Step by Step Solution

1. Step 1: Write the proportion equation
   881,051 : 1,215,851.46 = 478,643 : x
2. Step 2: Convert to fraction form
   881,051/1,215,851.46 = 478,643/x
3. Step 3: Cross multiply
   881,051x = 1,215,851.46 × 478,643
4. Step 4: Simplify right side
   881,051x = 581,958,790,368.78
5. Step 5: Solve for x
   x = 581,958,790,368.78/881,051
6. Step 6: Final answer
   x = 660,527.93