Finding the Fourth Proportional to 2,083.61, 3,126.15 and 697.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.61 : 3,126.15 = 697.56 : x
2. Step 2: Convert to fraction form
   2,083.61/3,126.15 = 697.56/x
3. Step 3: Cross multiply
   2,083.61x = 3,126.15 × 697.56
4. Step 4: Simplify right side
   2,083.61x = 2,180,677.19
5. Step 5: Solve for x
   x = 2,180,677.19/2,083.61
6. Step 6: Final answer
   x = 1,046.59