Finding the Fourth Proportional to 2,159.98, 2,981.00 and 1,275.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.98 : 2,981.00 = 1,275.75 : x
2. Step 2: Convert to fraction form
   2,159.98/2,981.00 = 1,275.75/x
3. Step 3: Cross multiply
   2,159.98x = 2,981.00 × 1,275.75
4. Step 4: Simplify right side
   2,159.98x = 3,803,013.94
5. Step 5: Solve for x
   x = 3,803,013.94/2,159.98
6. Step 6: Final answer
   x = 1,760.67