Finding the Fourth Proportional to 1,633.89, 2,254.17 and 934.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,633.89 : 2,254.17 = 934.86 : x
2. Step 2: Convert to fraction form
   1,633.89/2,254.17 = 934.86/x
3. Step 3: Cross multiply
   1,633.89x = 2,254.17 × 934.86
4. Step 4: Simplify right side
   1,633.89x = 2,107,333.37
5. Step 5: Solve for x
   x = 2,107,333.37/1,633.89
6. Step 6: Final answer
   x = 1,289.76