Finding the Fourth Proportional to 3,687.72, 5,090.86 and 2,514.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687.72 : 5,090.86 = 2,514.94 : x
2. Step 2: Convert to fraction form
   3,687.72/5,090.86 = 2,514.94/x
3. Step 3: Cross multiply
   3,687.72x = 5,090.86 × 2,514.94
4. Step 4: Simplify right side
   3,687.72x = 12,803,207.45
5. Step 5: Solve for x
   x = 12,803,207.45/3,687.72
6. Step 6: Final answer
   x = 3,471.85