Finding the Fourth Proportional to 3,648.50, 5,030.94 and 2,807.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.50 : 5,030.94 = 2,807.36 : x
2. Step 2: Convert to fraction form
   3,648.50/5,030.94 = 2,807.36/x
3. Step 3: Cross multiply
   3,648.50x = 5,030.94 × 2,807.36
4. Step 4: Simplify right side
   3,648.50x = 14,123,659.72
5. Step 5: Solve for x
   x = 14,123,659.72/3,648.50
6. Step 6: Final answer
   x = 3,871.09