Finding the Fourth Proportional to 1,946.86, 2,687.49 and 1,282.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,946.86 : 2,687.49 = 1,282.57 : x
2. Step 2: Convert to fraction form
   1,946.86/2,687.49 = 1,282.57/x
3. Step 3: Cross multiply
   1,946.86x = 2,687.49 × 1,282.57
4. Step 4: Simplify right side
   1,946.86x = 3,446,887.33
5. Step 5: Solve for x
   x = 3,446,887.33/1,946.86
6. Step 6: Final answer
   x = 1,770.49