Finding the Fourth Proportional to 2,726.02, 4,089.06 and 1,264.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726.02 : 4,089.06 = 1,264.78 : x
2. Step 2: Convert to fraction form
   2,726.02/4,089.06 = 1,264.78/x
3. Step 3: Cross multiply
   2,726.02x = 4,089.06 × 1,264.78
4. Step 4: Simplify right side
   2,726.02x = 5,171,761.31
5. Step 5: Solve for x
   x = 5,171,761.31/2,726.02
6. Step 6: Final answer
   x = 1,897.18