Finding the Fourth Proportional to 1,664,565.61, 2,297,108.42 and 939,443.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664,565.61 : 2,297,108.42 = 939,443.89 : x
2. Step 2: Convert to fraction form
   1,664,565.61/2,297,108.42 = 939,443.89/x
3. Step 3: Cross multiply
   1,664,565.61x = 2,297,108.42 × 939,443.89
4. Step 4: Simplify right side
   1,664,565.61x = 2,158,004,469,836.55
5. Step 5: Solve for x
   x = 2,158,004,469,836.55/1,664,565.61
6. Step 6: Final answer
   x = 1,296,437.01