Finding the Fourth Proportional to 1,010.04, 1,393.86 and 590.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.04 : 1,393.86 = 590.42 : x
2. Step 2: Convert to fraction form
   1,010.04/1,393.86 = 590.42/x
3. Step 3: Cross multiply
   1,010.04x = 1,393.86 × 590.42
4. Step 4: Simplify right side
   1,010.04x = 822,955.85
5. Step 5: Solve for x
   x = 822,955.85/1,010.04
6. Step 6: Final answer
   x = 814.78