Finding the Fourth Proportional to 1,131.42, 1,697.61 and 554.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.42 : 1,697.61 = 554.70 : x
2. Step 2: Convert to fraction form
   1,131.42/1,697.61 = 554.70/x
3. Step 3: Cross multiply
   1,131.42x = 1,697.61 × 554.70
4. Step 4: Simplify right side
   1,131.42x = 941,664.27
5. Step 5: Solve for x
   x = 941,664.27/1,131.42
6. Step 6: Final answer
   x = 832.29