Finding the Fourth Proportional to 1,021.01, 1,529.69 and 587.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021.01 : 1,529.69 = 587.25 : x
2. Step 2: Convert to fraction form
   1,021.01/1,529.69 = 587.25/x
3. Step 3: Cross multiply
   1,021.01x = 1,529.69 × 587.25
4. Step 4: Simplify right side
   1,021.01x = 898,307.52
5. Step 5: Solve for x
   x = 898,307.52/1,021.01
6. Step 6: Final answer
   x = 879.83