Finding the Fourth Proportional to 881,046, 1,215,844.56 and 478,638

Step by Step Solution

1. Step 1: Write the proportion equation
   881,046 : 1,215,844.56 = 478,638 : x
2. Step 2: Convert to fraction form
   881,046/1,215,844.56 = 478,638/x
3. Step 3: Cross multiply
   881,046x = 1,215,844.56 × 478,638
4. Step 4: Simplify right side
   881,046x = 581,949,408,509.28
5. Step 5: Solve for x
   x = 581,949,408,509.28/881,046
6. Step 6: Final answer
   x = 660,521.03