Finding the Fourth Proportional to 1,053.32, 1,453.64 and 587.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.32 : 1,453.64 = 587.56 : x
2. Step 2: Convert to fraction form
   1,053.32/1,453.64 = 587.56/x
3. Step 3: Cross multiply
   1,053.32x = 1,453.64 × 587.56
4. Step 4: Simplify right side
   1,053.32x = 854,100.72
5. Step 5: Solve for x
   x = 854,100.72/1,053.32
6. Step 6: Final answer
   x = 810.87