Finding the Fourth Proportional to 2,485,488.78, 3,429,941.85 and 1,397,760.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485,488.78 : 3,429,941.85 = 1,397,760.06 : x
2. Step 2: Convert to fraction form
   2,485,488.78/3,429,941.85 = 1,397,760.06/x
3. Step 3: Cross multiply
   2,485,488.78x = 3,429,941.85 × 1,397,760.06
4. Step 4: Simplify right side
   2,485,488.78x = 4,794,235,726,052.51
5. Step 5: Solve for x
   x = 4,794,235,726,052.51/2,485,488.78
6. Step 6: Final answer
   x = 1,928,890.51