Finding the Fourth Proportional to 2,279.34, 3,409.29 and 1,399.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.34 : 3,409.29 = 1,399.68 : x
2. Step 2: Convert to fraction form
   2,279.34/3,409.29 = 1,399.68/x
3. Step 3: Cross multiply
   2,279.34x = 3,409.29 × 1,399.68
4. Step 4: Simplify right side
   2,279.34x = 4,771,915.03
5. Step 5: Solve for x
   x = 4,771,915.03/2,279.34
6. Step 6: Final answer
   x = 2,093.55