Finding the Fourth Proportional to 2,140.90, 2,954.15 and 1,196.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.90 : 2,954.15 = 1,196.58 : x
2. Step 2: Convert to fraction form
   2,140.90/2,954.15 = 1,196.58/x
3. Step 3: Cross multiply
   2,140.90x = 2,954.15 × 1,196.58
4. Step 4: Simplify right side
   2,140.90x = 3,534,868.72
5. Step 5: Solve for x
   x = 3,534,868.72/2,140.90
6. Step 6: Final answer
   x = 1,651.11