Finding the Fourth Proportional to 2,802.85, 4,201.76 and 1,158.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.85 : 4,201.76 = 1,158.34 : x
2. Step 2: Convert to fraction form
   2,802.85/4,201.76 = 1,158.34/x
3. Step 3: Cross multiply
   2,802.85x = 4,201.76 × 1,158.34
4. Step 4: Simplify right side
   2,802.85x = 4,867,060.89
5. Step 5: Solve for x
   x = 4,867,060.89/2,802.85
6. Step 6: Final answer
   x = 1,736.47