Finding the Fourth Proportional to 1,422.57, 1,961.98 and 1,194.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.57 : 1,961.98 = 1,194.57 : x
2. Step 2: Convert to fraction form
   1,422.57/1,961.98 = 1,194.57/x
3. Step 3: Cross multiply
   1,422.57x = 1,961.98 × 1,194.57
4. Step 4: Simplify right side
   1,422.57x = 2,343,712.64
5. Step 5: Solve for x
   x = 2,343,712.64/1,422.57
6. Step 6: Final answer
   x = 1,647.53