Finding the Fourth Proportional to 1,545.88, 2,319.86 and 1,026.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,545.88 : 2,319.86 = 1,026.48 : x
2. Step 2: Convert to fraction form
   1,545.88/2,319.86 = 1,026.48/x
3. Step 3: Cross multiply
   1,545.88x = 2,319.86 × 1,026.48
4. Step 4: Simplify right side
   1,545.88x = 2,381,289.89
5. Step 5: Solve for x
   x = 2,381,289.89/1,545.88
6. Step 6: Final answer
   x = 1,540.41