Finding the Fourth Proportional to 1,864.25, 2,572.17 and 1,200.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.25 : 2,572.17 = 1,200.56 : x
2. Step 2: Convert to fraction form
   1,864.25/2,572.17 = 1,200.56/x
3. Step 3: Cross multiply
   1,864.25x = 2,572.17 × 1,200.56
4. Step 4: Simplify right side
   1,864.25x = 3,088,044.42
5. Step 5: Solve for x
   x = 3,088,044.42/1,864.25
6. Step 6: Final answer
   x = 1,656.45