Finding the Fourth Proportional to 3,101.55, 4,648.42 and 1,251.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,101.55 : 4,648.42 = 1,251.64 : x
2. Step 2: Convert to fraction form
   3,101.55/4,648.42 = 1,251.64/x
3. Step 3: Cross multiply
   3,101.55x = 4,648.42 × 1,251.64
4. Step 4: Simplify right side
   3,101.55x = 5,818,131.31
5. Step 5: Solve for x
   x = 5,818,131.31/3,101.55
6. Step 6: Final answer
   x = 1,875.88