Finding the Fourth Proportional to 2,505.16, 3,458.56 and 1,870.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.16 : 3,458.56 = 1,870.59 : x
2. Step 2: Convert to fraction form
   2,505.16/3,458.56 = 1,870.59/x
3. Step 3: Cross multiply
   2,505.16x = 3,458.56 × 1,870.59
4. Step 4: Simplify right side
   2,505.16x = 6,469,541.10
5. Step 5: Solve for x
   x = 6,469,541.10/2,505.16
6. Step 6: Final answer
   x = 2,582.48