Finding the Fourth Proportional to 1,112.42, 1,535.00 and 664.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.42 : 1,535.00 = 664.29 : x
2. Step 2: Convert to fraction form
   1,112.42/1,535.00 = 664.29/x
3. Step 3: Cross multiply
   1,112.42x = 1,535.00 × 664.29
4. Step 4: Simplify right side
   1,112.42x = 1,019,681.83
5. Step 5: Solve for x
   x = 1,019,681.83/1,112.42
6. Step 6: Final answer
   x = 916.64