Finding the Fourth Proportional to 1,429.46, 2,141.84 and 880.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.46 : 2,141.84 = 880.47 : x
2. Step 2: Convert to fraction form
   1,429.46/2,141.84 = 880.47/x
3. Step 3: Cross multiply
   1,429.46x = 2,141.84 × 880.47
4. Step 4: Simplify right side
   1,429.46x = 1,885,821.46
5. Step 5: Solve for x
   x = 1,885,821.46/1,429.46
6. Step 6: Final answer
   x = 1,319.26