Finding the Fourth Proportional to 784.69, 1,081.56 and 595.58

Step by Step Solution

1. Step 1: Write the proportion equation
   784.69 : 1,081.56 = 595.58 : x
2. Step 2: Convert to fraction form
   784.69/1,081.56 = 595.58/x
3. Step 3: Cross multiply
   784.69x = 1,081.56 × 595.58
4. Step 4: Simplify right side
   784.69x = 644,155.50
5. Step 5: Solve for x
   x = 644,155.50/784.69
6. Step 6: Final answer
   x = 820.90