Finding the Fourth Proportional to 1,233.30, 1,850.98 and 648.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.30 : 1,850.98 = 648.51 : x
2. Step 2: Convert to fraction form
   1,233.30/1,850.98 = 648.51/x
3. Step 3: Cross multiply
   1,233.30x = 1,850.98 × 648.51
4. Step 4: Simplify right side
   1,233.30x = 1,200,379.04
5. Step 5: Solve for x
   x = 1,200,379.04/1,233.30
6. Step 6: Final answer
   x = 973.31