Finding the Fourth Proportional to 1,431.41, 2,142.86 and 1,060.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431.41 : 2,142.86 = 1,060.29 : x
2. Step 2: Convert to fraction form
   1,431.41/2,142.86 = 1,060.29/x
3. Step 3: Cross multiply
   1,431.41x = 2,142.86 × 1,060.29
4. Step 4: Simplify right side
   1,431.41x = 2,272,047.73
5. Step 5: Solve for x
   x = 2,272,047.73/1,431.41
6. Step 6: Final answer
   x = 1,587.29