Finding the Fourth Proportional to 1,131.03, 1,696.82 and 400.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.03 : 1,696.82 = 400.61 : x
2. Step 2: Convert to fraction form
   1,131.03/1,696.82 = 400.61/x
3. Step 3: Cross multiply
   1,131.03x = 1,696.82 × 400.61
4. Step 4: Simplify right side
   1,131.03x = 679,765.30
5. Step 5: Solve for x
   x = 679,765.30/1,131.03
6. Step 6: Final answer
   x = 601.01