Finding the Fourth Proportional to 4,079.82, 6,120.71 and 1,158.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4,079.82 : 6,120.71 = 1,158.05 : x
2. Step 2: Convert to fraction form
   4,079.82/6,120.71 = 1,158.05/x
3. Step 3: Cross multiply
   4,079.82x = 6,120.71 × 1,158.05
4. Step 4: Simplify right side
   4,079.82x = 7,088,074.15
5. Step 5: Solve for x
   x = 7,088,074.15/4,079.82
6. Step 6: Final answer
   x = 1,737.35