Finding the Fourth Proportional to 1,078.83, 1,617.90 and 462.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.83 : 1,617.90 = 462.37 : x
2. Step 2: Convert to fraction form
   1,078.83/1,617.90 = 462.37/x
3. Step 3: Cross multiply
   1,078.83x = 1,617.90 × 462.37
4. Step 4: Simplify right side
   1,078.83x = 748,068.42
5. Step 5: Solve for x
   x = 748,068.42/1,078.83
6. Step 6: Final answer
   x = 693.41