Finding the Fourth Proportional to 2,890.16, 4,335.52 and 1,158.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.16 : 4,335.52 = 1,158.56 : x
2. Step 2: Convert to fraction form
   2,890.16/4,335.52 = 1,158.56/x
3. Step 3: Cross multiply
   2,890.16x = 4,335.52 × 1,158.56
4. Step 4: Simplify right side
   2,890.16x = 5,022,960.05
5. Step 5: Solve for x
   x = 5,022,960.05/2,890.16
6. Step 6: Final answer
   x = 1,737.95