Finding the Fourth Proportional to 3,710.74, 5,120.72 and 2,293.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,710.74 : 5,120.72 = 2,293.86 : x
2. Step 2: Convert to fraction form
   3,710.74/5,120.72 = 2,293.86/x
3. Step 3: Cross multiply
   3,710.74x = 5,120.72 × 2,293.86
4. Step 4: Simplify right side
   3,710.74x = 11,746,214.78
5. Step 5: Solve for x
   x = 11,746,214.78/3,710.74
6. Step 6: Final answer
   x = 3,165.46