Finding the Fourth Proportional to 1,134.02, 1,564.52 and 661.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134.02 : 1,564.52 = 661.86 : x
2. Step 2: Convert to fraction form
   1,134.02/1,564.52 = 661.86/x
3. Step 3: Cross multiply
   1,134.02x = 1,564.52 × 661.86
4. Step 4: Simplify right side
   1,134.02x = 1,035,493.21
5. Step 5: Solve for x
   x = 1,035,493.21/1,134.02
6. Step 6: Final answer
   x = 913.12