Finding the Fourth Proportional to 2,545.89, 3,818.52 and 697.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.89 : 3,818.52 = 697.16 : x
2. Step 2: Convert to fraction form
   2,545.89/3,818.52 = 697.16/x
3. Step 3: Cross multiply
   2,545.89x = 3,818.52 × 697.16
4. Step 4: Simplify right side
   2,545.89x = 2,662,119.40
5. Step 5: Solve for x
   x = 2,662,119.40/2,545.89
6. Step 6: Final answer
   x = 1,045.65