Finding the Fourth Proportional to 1,036.72, 1,430.31 and 594.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.72 : 1,430.31 = 594.30 : x
2. Step 2: Convert to fraction form
   1,036.72/1,430.31 = 594.30/x
3. Step 3: Cross multiply
   1,036.72x = 1,430.31 × 594.30
4. Step 4: Simplify right side
   1,036.72x = 850,033.23
5. Step 5: Solve for x
   x = 850,033.23/1,036.72
6. Step 6: Final answer
   x = 819.93