Finding the Fourth Proportional to 2,541.80, 3,807.98 and 1,309.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,541.80 : 3,807.98 = 1,309.96 : x
2. Step 2: Convert to fraction form
   2,541.80/3,807.98 = 1,309.96/x
3. Step 3: Cross multiply
   2,541.80x = 3,807.98 × 1,309.96
4. Step 4: Simplify right side
   2,541.80x = 4,988,275.89
5. Step 5: Solve for x
   x = 4,988,275.89/2,541.80
6. Step 6: Final answer
   x = 1,962.50