Finding the Fourth Proportional to 2,283.07, 3,150.74 and 1,288.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,283.07 : 3,150.74 = 1,288.34 : x
2. Step 2: Convert to fraction form
   2,283.07/3,150.74 = 1,288.34/x
3. Step 3: Cross multiply
   2,283.07x = 3,150.74 × 1,288.34
4. Step 4: Simplify right side
   2,283.07x = 4,059,211.84
5. Step 5: Solve for x
   x = 4,059,211.84/2,283.07
6. Step 6: Final answer
   x = 1,777.96