Finding the Fourth Proportional to 1,012.83, 1,518.37 and 492.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012.83 : 1,518.37 = 492.10 : x
2. Step 2: Convert to fraction form
   1,012.83/1,518.37 = 492.10/x
3. Step 3: Cross multiply
   1,012.83x = 1,518.37 × 492.10
4. Step 4: Simplify right side
   1,012.83x = 747,187.42
5. Step 5: Solve for x
   x = 747,187.42/1,012.83
6. Step 6: Final answer
   x = 737.72