Finding the Fourth Proportional to 1,296.43, 1,787.86 and 1,047.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,296.43 : 1,787.86 = 1,047.62 : x
2. Step 2: Convert to fraction form
   1,296.43/1,787.86 = 1,047.62/x
3. Step 3: Cross multiply
   1,296.43x = 1,787.86 × 1,047.62
4. Step 4: Simplify right side
   1,296.43x = 1,872,997.89
5. Step 5: Solve for x
   x = 1,872,997.89/1,296.43
6. Step 6: Final answer
   x = 1,444.74