Finding the Fourth Proportional to 1,429.08, 2,144.01 and 1,039.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.08 : 2,144.01 = 1,039.47 : x
2. Step 2: Convert to fraction form
   1,429.08/2,144.01 = 1,039.47/x
3. Step 3: Cross multiply
   1,429.08x = 2,144.01 × 1,039.47
4. Step 4: Simplify right side
   1,429.08x = 2,228,634.07
5. Step 5: Solve for x
   x = 2,228,634.07/1,429.08
6. Step 6: Final answer
   x = 1,559.49