Finding the Fourth Proportional to 1,760.72, 2,640.78 and 590.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,760.72 : 2,640.78 = 590.62 : x
2. Step 2: Convert to fraction form
   1,760.72/2,640.78 = 590.62/x
3. Step 3: Cross multiply
   1,760.72x = 2,640.78 × 590.62
4. Step 4: Simplify right side
   1,760.72x = 1,559,697.48
5. Step 5: Solve for x
   x = 1,559,697.48/1,760.72
6. Step 6: Final answer
   x = 885.83