Finding the Fourth Proportional to 2,890.03, 4,335.23 and 1,158.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.03 : 4,335.23 = 1,158.43 : x
2. Step 2: Convert to fraction form
   2,890.03/4,335.23 = 1,158.43/x
3. Step 3: Cross multiply
   2,890.03x = 4,335.23 × 1,158.43
4. Step 4: Simplify right side
   2,890.03x = 5,022,054.70
5. Step 5: Solve for x
   x = 5,022,054.70/2,890.03
6. Step 6: Final answer
   x = 1,737.72