Finding the Fourth Proportional to 2,545.83, 3,818.43 and 697.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.83 : 3,818.43 = 697.10 : x
2. Step 2: Convert to fraction form
   2,545.83/3,818.43 = 697.10/x
3. Step 3: Cross multiply
   2,545.83x = 3,818.43 × 697.10
4. Step 4: Simplify right side
   2,545.83x = 2,661,808.46
5. Step 5: Solve for x
   x = 2,661,808.46/2,545.83
6. Step 6: Final answer
   x = 1,045.56