Finding the Fourth Proportional to 1,004.83, 1,387.32 and 612.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.83 : 1,387.32 = 612.52 : x
2. Step 2: Convert to fraction form
   1,004.83/1,387.32 = 612.52/x
3. Step 3: Cross multiply
   1,004.83x = 1,387.32 × 612.52
4. Step 4: Simplify right side
   1,004.83x = 849,765.28
5. Step 5: Solve for x
   x = 849,765.28/1,004.83
6. Step 6: Final answer
   x = 845.68