Finding the Fourth Proportional to 2,298.34, 3,168.75 and 1,669.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.34 : 3,168.75 = 1,669.78 : x
2. Step 2: Convert to fraction form
   2,298.34/3,168.75 = 1,669.78/x
3. Step 3: Cross multiply
   2,298.34x = 3,168.75 × 1,669.78
4. Step 4: Simplify right side
   2,298.34x = 5,291,115.38
5. Step 5: Solve for x
   x = 5,291,115.38/2,298.34
6. Step 6: Final answer
   x = 2,302.15