Finding the Fourth Proportional to 2,118.13, 2,922.34 and 1,279.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.13 : 2,922.34 = 1,279.10 : x
2. Step 2: Convert to fraction form
   2,118.13/2,922.34 = 1,279.10/x
3. Step 3: Cross multiply
   2,118.13x = 2,922.34 × 1,279.10
4. Step 4: Simplify right side
   2,118.13x = 3,737,965.09
5. Step 5: Solve for x
   x = 3,737,965.09/2,118.13
6. Step 6: Final answer
   x = 1,764.75