Finding the Fourth Proportional to 1,131.99, 1,697.38 and 401.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.99 : 1,697.38 = 401.03 : x
2. Step 2: Convert to fraction form
   1,131.99/1,697.38 = 401.03/x
3. Step 3: Cross multiply
   1,131.99x = 1,697.38 × 401.03
4. Step 4: Simplify right side
   1,131.99x = 680,700.30
5. Step 5: Solve for x
   x = 680,700.30/1,131.99
6. Step 6: Final answer
   x = 601.33