Finding the Fourth Proportional to 2,802.41, 4,202.90 and 1,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.41 : 4,202.90 = 1,158.72 : x
2. Step 2: Convert to fraction form
   2,802.41/4,202.90 = 1,158.72/x
3. Step 3: Cross multiply
   2,802.41x = 4,202.90 × 1,158.72
4. Step 4: Simplify right side
   2,802.41x = 4,869,984.29
5. Step 5: Solve for x
   x = 4,869,984.29/2,802.41
6. Step 6: Final answer
   x = 1,737.78