Finding the Fourth Proportional to 1,133.30, 1,564.50 and 713.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,133.30 : 1,564.50 = 713.85 : x
2. Step 2: Convert to fraction form
   1,133.30/1,564.50 = 713.85/x
3. Step 3: Cross multiply
   1,133.30x = 1,564.50 × 713.85
4. Step 4: Simplify right side
   1,133.30x = 1,116,818.33
5. Step 5: Solve for x
   x = 1,116,818.33/1,133.30
6. Step 6: Final answer
   x = 985.46