Finding the Fourth Proportional to 2,621.39, 3,932.69 and 1,159.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.39 : 3,932.69 = 1,159.74 : x
2. Step 2: Convert to fraction form
   2,621.39/3,932.69 = 1,159.74/x
3. Step 3: Cross multiply
   2,621.39x = 3,932.69 × 1,159.74
4. Step 4: Simplify right side
   2,621.39x = 4,560,892.10
5. Step 5: Solve for x
   x = 4,560,892.10/2,621.39
6. Step 6: Final answer
   x = 1,739.88