Finding the Fourth Proportional to 2,140.32, 3,210.28 and 1,451.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.32 : 3,210.28 = 1,451.42 : x
2. Step 2: Convert to fraction form
   2,140.32/3,210.28 = 1,451.42/x
3. Step 3: Cross multiply
   2,140.32x = 3,210.28 × 1,451.42
4. Step 4: Simplify right side
   2,140.32x = 4,659,464.60
5. Step 5: Solve for x
   x = 4,659,464.60/2,140.32
6. Step 6: Final answer
   x = 2,176.99