Finding the Fourth Proportional to 1,463.76, 2,190.42 and 1,260.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,463.76 : 2,190.42 = 1,260.72 : x
2. Step 2: Convert to fraction form
   1,463.76/2,190.42 = 1,260.72/x
3. Step 3: Cross multiply
   1,463.76x = 2,190.42 × 1,260.72
4. Step 4: Simplify right side
   1,463.76x = 2,761,506.30
5. Step 5: Solve for x
   x = 2,761,506.30/1,463.76
6. Step 6: Final answer
   x = 1,886.58