Finding the Fourth Proportional to 2,799.66, 3,862.17 and 2,174.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.66 : 3,862.17 = 2,174.34 : x
2. Step 2: Convert to fraction form
   2,799.66/3,862.17 = 2,174.34/x
3. Step 3: Cross multiply
   2,799.66x = 3,862.17 × 2,174.34
4. Step 4: Simplify right side
   2,799.66x = 8,397,670.72
5. Step 5: Solve for x
   x = 8,397,670.72/2,799.66
6. Step 6: Final answer
   x = 2,999.53