Finding the Fourth Proportional to 1,053.14, 1,453.32 and 611.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.14 : 1,453.32 = 611.10 : x
2. Step 2: Convert to fraction form
   1,053.14/1,453.32 = 611.10/x
3. Step 3: Cross multiply
   1,053.14x = 1,453.32 × 611.10
4. Step 4: Simplify right side
   1,053.14x = 888,123.85
5. Step 5: Solve for x
   x = 888,123.85/1,053.14
6. Step 6: Final answer
   x = 843.31