Finding the Fourth Proportional to 2,485.59, 3,726.21 and 1,251.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.59 : 3,726.21 = 1,251.96 : x
2. Step 2: Convert to fraction form
   2,485.59/3,726.21 = 1,251.96/x
3. Step 3: Cross multiply
   2,485.59x = 3,726.21 × 1,251.96
4. Step 4: Simplify right side
   2,485.59x = 4,665,065.87
5. Step 5: Solve for x
   x = 4,665,065.87/2,485.59
6. Step 6: Final answer
   x = 1,876.84