Finding the Fourth Proportional to 1,053.32, 1,453.58 and 587.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.32 : 1,453.58 = 587.57 : x
2. Step 2: Convert to fraction form
   1,053.32/1,453.58 = 587.57/x
3. Step 3: Cross multiply
   1,053.32x = 1,453.58 × 587.57
4. Step 4: Simplify right side
   1,053.32x = 854,072.80
5. Step 5: Solve for x
   x = 854,072.80/1,053.32
6. Step 6: Final answer
   x = 810.84