Finding the Fourth Proportional to 1,110.71, 1,532.67 and 613.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,110.71 : 1,532.67 = 613.34 : x
2. Step 2: Convert to fraction form
   1,110.71/1,532.67 = 613.34/x
3. Step 3: Cross multiply
   1,110.71x = 1,532.67 × 613.34
4. Step 4: Simplify right side
   1,110.71x = 940,043.60
5. Step 5: Solve for x
   x = 940,043.60/1,110.71
6. Step 6: Final answer
   x = 846.34