Finding the Fourth Proportional to 3,151.86, 4,726.29 and 960.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,151.86 : 4,726.29 = 960.15 : x
2. Step 2: Convert to fraction form
   3,151.86/4,726.29 = 960.15/x
3. Step 3: Cross multiply
   3,151.86x = 4,726.29 × 960.15
4. Step 4: Simplify right side
   3,151.86x = 4,537,947.34
5. Step 5: Solve for x
   x = 4,537,947.34/3,151.86
6. Step 6: Final answer
   x = 1,439.77