Finding the Fourth Proportional to 2,083.91, 3,126.31 and 696.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.91 : 3,126.31 = 696.98 : x
2. Step 2: Convert to fraction form
   2,083.91/3,126.31 = 696.98/x
3. Step 3: Cross multiply
   2,083.91x = 3,126.31 × 696.98
4. Step 4: Simplify right side
   2,083.91x = 2,178,981.62
5. Step 5: Solve for x
   x = 2,178,981.62/2,083.91
6. Step 6: Final answer
   x = 1,045.62