Finding the Fourth Proportional to 2,637.71, 3,958.51 and 1,251.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.71 : 3,958.51 = 1,251.05 : x
2. Step 2: Convert to fraction form
   2,637.71/3,958.51 = 1,251.05/x
3. Step 3: Cross multiply
   2,637.71x = 3,958.51 × 1,251.05
4. Step 4: Simplify right side
   2,637.71x = 4,952,280.98
5. Step 5: Solve for x
   x = 4,952,280.98/2,637.71
6. Step 6: Final answer
   x = 1,877.49