Finding the Fourth Proportional to 4,356,978.54, 6,535,680.58 and 1,660,801.20

Step by Step Solution

1. Step 1: Write the proportion equation
   4,356,978.54 : 6,535,680.58 = 1,660,801.20 : x
2. Step 2: Convert to fraction form
   4,356,978.54/6,535,680.58 = 1,660,801.20/x
3. Step 3: Cross multiply
   4,356,978.54x = 6,535,680.58 × 1,660,801.20
4. Step 4: Simplify right side
   4,356,978.54x = 10,854,466,127,647.89
5. Step 5: Solve for x
   x = 10,854,466,127,647.89/4,356,978.54
6. Step 6: Final answer
   x = 2,491,282.90