Finding the Fourth Proportional to 2,505.89, 3,458.15 and 1,371.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.89 : 3,458.15 = 1,371.59 : x
2. Step 2: Convert to fraction form
   2,505.89/3,458.15 = 1,371.59/x
3. Step 3: Cross multiply
   2,505.89x = 3,458.15 × 1,371.59
4. Step 4: Simplify right side
   2,505.89x = 4,743,139.81
5. Step 5: Solve for x
   x = 4,743,139.81/2,505.89
6. Step 6: Final answer
   x = 1,892.80