Finding the Fourth Proportional to 1,087.59, 1,500.86 and 590.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.59 : 1,500.86 = 590.25 : x
2. Step 2: Convert to fraction form
   1,087.59/1,500.86 = 590.25/x
3. Step 3: Cross multiply
   1,087.59x = 1,500.86 × 590.25
4. Step 4: Simplify right side
   1,087.59x = 885,877.51
5. Step 5: Solve for x
   x = 885,877.51/1,087.59
6. Step 6: Final answer
   x = 814.53