Finding the Fourth Proportional to 2,630,105.60, 3,942,436.80 and 1,429,491.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630,105.60 : 3,942,436.80 = 1,429,491.20 : x
2. Step 2: Convert to fraction form
   2,630,105.60/3,942,436.80 = 1,429,491.20/x
3. Step 3: Cross multiply
   2,630,105.60x = 3,942,436.80 × 1,429,491.20
4. Step 4: Simplify right side
   2,630,105.60x = 5,635,678,712,156.16
5. Step 5: Solve for x
   x = 5,635,678,712,156.16/2,630,105.60
6. Step 6: Final answer
   x = 2,142,757.58