Finding the Fourth Proportional to 1,787.20, 2,461.72 and 1,262.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787.20 : 2,461.72 = 1,262.32 : x
2. Step 2: Convert to fraction form
   1,787.20/2,461.72 = 1,262.32/x
3. Step 3: Cross multiply
   1,787.20x = 2,461.72 × 1,262.32
4. Step 4: Simplify right side
   1,787.20x = 3,107,478.39
5. Step 5: Solve for x
   x = 3,107,478.39/1,787.20
6. Step 6: Final answer
   x = 1,738.74