Finding the Fourth Proportional to 1,194.61, 1,648.27 and 690.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,194.61 : 1,648.27 = 690.46 : x
2. Step 2: Convert to fraction form
   1,194.61/1,648.27 = 690.46/x
3. Step 3: Cross multiply
   1,194.61x = 1,648.27 × 690.46
4. Step 4: Simplify right side
   1,194.61x = 1,138,064.50
5. Step 5: Solve for x
   x = 1,138,064.50/1,194.61
6. Step 6: Final answer
   x = 952.67