Finding the Fourth Proportional to 2,029.42, 2,800.87 and 1,145.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,029.42 : 2,800.87 = 1,145.25 : x
2. Step 2: Convert to fraction form
   2,029.42/2,800.87 = 1,145.25/x
3. Step 3: Cross multiply
   2,029.42x = 2,800.87 × 1,145.25
4. Step 4: Simplify right side
   2,029.42x = 3,207,693.50
5. Step 5: Solve for x
   x = 3,207,693.50/2,029.42
6. Step 6: Final answer
   x = 1,580.60