Finding the Fourth Proportional to 2,340.86, 3,510.97 and 697.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.86 : 3,510.97 = 697.10 : x
2. Step 2: Convert to fraction form
   2,340.86/3,510.97 = 697.10/x
3. Step 3: Cross multiply
   2,340.86x = 3,510.97 × 697.10
4. Step 4: Simplify right side
   2,340.86x = 2,447,477.89
5. Step 5: Solve for x
   x = 2,447,477.89/2,340.86
6. Step 6: Final answer
   x = 1,045.55