Finding the Fourth Proportional to 3,100.74, 4,651.17 and 760.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.74 : 4,651.17 = 760.76 : x
2. Step 2: Convert to fraction form
   3,100.74/4,651.17 = 760.76/x
3. Step 3: Cross multiply
   3,100.74x = 4,651.17 × 760.76
4. Step 4: Simplify right side
   3,100.74x = 3,538,400.83
5. Step 5: Solve for x
   x = 3,538,400.83/3,100.74
6. Step 6: Final answer
   x = 1,141.15