Finding the Fourth Proportional to 1,233.19, 1,850.76 and 648.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.19 : 1,850.76 = 648.53 : x
2. Step 2: Convert to fraction form
   1,233.19/1,850.76 = 648.53/x
3. Step 3: Cross multiply
   1,233.19x = 1,850.76 × 648.53
4. Step 4: Simplify right side
   1,233.19x = 1,200,271.07
5. Step 5: Solve for x
   x = 1,200,271.07/1,233.19
6. Step 6: Final answer
   x = 973.31