Finding the Fourth Proportional to 5,799.18, 8,698.34 and 2,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,799.18 : 8,698.34 = 2,100.72 : x
2. Step 2: Convert to fraction form
   5,799.18/8,698.34 = 2,100.72/x
3. Step 3: Cross multiply
   5,799.18x = 8,698.34 × 2,100.72
4. Step 4: Simplify right side
   5,799.18x = 18,272,776.80
5. Step 5: Solve for x
   x = 18,272,776.80/5,799.18
6. Step 6: Final answer
   x = 3,150.92