Finding the Fourth Proportional to 2,298.80, 3,174.72 and 1,769.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.80 : 3,174.72 = 1,769.60 : x
2. Step 2: Convert to fraction form
   2,298.80/3,174.72 = 1,769.60/x
3. Step 3: Cross multiply
   2,298.80x = 3,174.72 × 1,769.60
4. Step 4: Simplify right side
   2,298.80x = 5,617,984.51
5. Step 5: Solve for x
   x = 5,617,984.51/2,298.80
6. Step 6: Final answer
   x = 2,443.88