Finding the Fourth Proportional to 1,053.33, 1,453.53 and 633.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.33 : 1,453.53 = 633.61 : x
2. Step 2: Convert to fraction form
   1,053.33/1,453.53 = 633.61/x
3. Step 3: Cross multiply
   1,053.33x = 1,453.53 × 633.61
4. Step 4: Simplify right side
   1,053.33x = 920,965.69
5. Step 5: Solve for x
   x = 920,965.69/1,053.33
6. Step 6: Final answer
   x = 874.34