Finding the Fourth Proportional to 2,029.86, 2,801.25 and 1,145.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,029.86 : 2,801.25 = 1,145.61 : x
2. Step 2: Convert to fraction form
   2,029.86/2,801.25 = 1,145.61/x
3. Step 3: Cross multiply
   2,029.86x = 2,801.25 × 1,145.61
4. Step 4: Simplify right side
   2,029.86x = 3,209,140.01
5. Step 5: Solve for x
   x = 3,209,140.01/2,029.86
6. Step 6: Final answer
   x = 1,580.97