Finding the Fourth Proportional to 1,087.82, 1,501.20 and 590.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.82 : 1,501.20 = 590.48 : x
2. Step 2: Convert to fraction form
   1,087.82/1,501.20 = 590.48/x
3. Step 3: Cross multiply
   1,087.82x = 1,501.20 × 590.48
4. Step 4: Simplify right side
   1,087.82x = 886,421.07
5. Step 5: Solve for x
   x = 886,421.07/1,087.82
6. Step 6: Final answer
   x = 814.86