Finding the Fourth Proportional to 1,641.83, 2,462.73 and 1,158.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.83 : 2,462.73 = 1,158.86 : x
2. Step 2: Convert to fraction form
   1,641.83/2,462.73 = 1,158.86/x
3. Step 3: Cross multiply
   1,641.83x = 2,462.73 × 1,158.86
4. Step 4: Simplify right side
   1,641.83x = 2,853,959.29
5. Step 5: Solve for x
   x = 2,853,959.29/1,641.83
6. Step 6: Final answer
   x = 1,738.28