Finding the Fourth Proportional to 2,079.62, 3,117.35 and 1,155.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.62 : 3,117.35 = 1,155.59 : x
2. Step 2: Convert to fraction form
   2,079.62/3,117.35 = 1,155.59/x
3. Step 3: Cross multiply
   2,079.62x = 3,117.35 × 1,155.59
4. Step 4: Simplify right side
   2,079.62x = 3,602,365.79
5. Step 5: Solve for x
   x = 3,602,365.79/2,079.62
6. Step 6: Final answer
   x = 1,732.23