Finding the Fourth Proportional to 1,865.96, 2,572.30 and 1,304.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865.96 : 2,572.30 = 1,304.69 : x
2. Step 2: Convert to fraction form
   1,865.96/2,572.30 = 1,304.69/x
3. Step 3: Cross multiply
   1,865.96x = 2,572.30 × 1,304.69
4. Step 4: Simplify right side
   1,865.96x = 3,356,042.86
5. Step 5: Solve for x
   x = 3,356,042.86/1,865.96
6. Step 6: Final answer
   x = 1,798.56