Finding the Fourth Proportional to 1,866.96, 2,574.72 and 1,604.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866.96 : 2,574.72 = 1,604.88 : x
2. Step 2: Convert to fraction form
   1,866.96/2,574.72 = 1,604.88/x
3. Step 3: Cross multiply
   1,866.96x = 2,574.72 × 1,604.88
4. Step 4: Simplify right side
   1,866.96x = 4,132,116.63
5. Step 5: Solve for x
   x = 4,132,116.63/1,866.96
6. Step 6: Final answer
   x = 2,213.29