Finding the Fourth Proportional to 1,862.77, 2,571.38 and 1,200.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,862.77 : 2,571.38 = 1,200.46 : x
2. Step 2: Convert to fraction form
   1,862.77/2,571.38 = 1,200.46/x
3. Step 3: Cross multiply
   1,862.77x = 2,571.38 × 1,200.46
4. Step 4: Simplify right side
   1,862.77x = 3,086,838.83
5. Step 5: Solve for x
   x = 3,086,838.83/1,862.77
6. Step 6: Final answer
   x = 1,657.12