Finding the Fourth Proportional to 2,490.95, 3,437.30 and 1,371.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.95 : 3,437.30 = 1,371.71 : x
2. Step 2: Convert to fraction form
   2,490.95/3,437.30 = 1,371.71/x
3. Step 3: Cross multiply
   2,490.95x = 3,437.30 × 1,371.71
4. Step 4: Simplify right side
   2,490.95x = 4,714,978.78
5. Step 5: Solve for x
   x = 4,714,978.78/2,490.95
6. Step 6: Final answer
   x = 1,892.84