Finding the Fourth Proportional to 2,138.77, 2,951.33 and 1,194.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138.77 : 2,951.33 = 1,194.48 : x
2. Step 2: Convert to fraction form
   2,138.77/2,951.33 = 1,194.48/x
3. Step 3: Cross multiply
   2,138.77x = 2,951.33 × 1,194.48
4. Step 4: Simplify right side
   2,138.77x = 3,525,317.02
5. Step 5: Solve for x
   x = 3,525,317.02/2,138.77
6. Step 6: Final answer
   x = 1,648.29