Finding the Fourth Proportional to 2,397.60, 3,308.94 and 1,807.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,397.60 : 3,308.94 = 1,807.20 : x
2. Step 2: Convert to fraction form
   2,397.60/3,308.94 = 1,807.20/x
3. Step 3: Cross multiply
   2,397.60x = 3,308.94 × 1,807.20
4. Step 4: Simplify right side
   2,397.60x = 5,979,916.37
5. Step 5: Solve for x
   x = 5,979,916.37/2,397.60
6. Step 6: Final answer
   x = 2,494.13