Finding the Fourth Proportional to 2,620.94, 3,932.69 and 1,159.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.94 : 3,932.69 = 1,159.88 : x
2. Step 2: Convert to fraction form
   2,620.94/3,932.69 = 1,159.88/x
3. Step 3: Cross multiply
   2,620.94x = 3,932.69 × 1,159.88
4. Step 4: Simplify right side
   2,620.94x = 4,561,423.01
5. Step 5: Solve for x
   x = 4,561,423.01/2,620.94
6. Step 6: Final answer
   x = 1,740.38