Finding the Fourth Proportional to 2,279.68, 3,147.76 and 1,696.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.68 : 3,147.76 = 1,696.48 : x
2. Step 2: Convert to fraction form
   2,279.68/3,147.76 = 1,696.48/x
3. Step 3: Cross multiply
   2,279.68x = 3,147.76 × 1,696.48
4. Step 4: Simplify right side
   2,279.68x = 5,340,111.88
5. Step 5: Solve for x
   x = 5,340,111.88/2,279.68
6. Step 6: Final answer
   x = 2,342.48