Finding the Fourth Proportional to 1,132.56, 1,697.52 and 401.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.56 : 1,697.52 = 401.88 : x
2. Step 2: Convert to fraction form
   1,132.56/1,697.52 = 401.88/x
3. Step 3: Cross multiply
   1,132.56x = 1,697.52 × 401.88
4. Step 4: Simplify right side
   1,132.56x = 682,199.34
5. Step 5: Solve for x
   x = 682,199.34/1,132.56
6. Step 6: Final answer
   x = 602.35