Finding the Fourth Proportional to 1,976.55, 2,960.51 and 1,152.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,976.55 : 2,960.51 = 1,152.78 : x
2. Step 2: Convert to fraction form
   1,976.55/2,960.51 = 1,152.78/x
3. Step 3: Cross multiply
   1,976.55x = 2,960.51 × 1,152.78
4. Step 4: Simplify right side
   1,976.55x = 3,412,810.95
5. Step 5: Solve for x
   x = 3,412,810.95/1,976.55
6. Step 6: Final answer
   x = 1,726.65