Finding the Fourth Proportional to 1,113.12, 1,667.46 and 649.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.12 : 1,667.46 = 649.53 : x
2. Step 2: Convert to fraction form
   1,113.12/1,667.46 = 649.53/x
3. Step 3: Cross multiply
   1,113.12x = 1,667.46 × 649.53
4. Step 4: Simplify right side
   1,113.12x = 1,083,065.29
5. Step 5: Solve for x
   x = 1,083,065.29/1,113.12
6. Step 6: Final answer
   x = 973.00