Finding the Fourth Proportional to 2,870.01, 4,298.90 and 2,168.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.01 : 4,298.90 = 2,168.96 : x
2. Step 2: Convert to fraction form
   2,870.01/4,298.90 = 2,168.96/x
3. Step 3: Cross multiply
   2,870.01x = 4,298.90 × 2,168.96
4. Step 4: Simplify right side
   2,870.01x = 9,324,109.80
5. Step 5: Solve for x
   x = 9,324,109.80/2,870.01
6. Step 6: Final answer
   x = 3,248.81