Finding the Fourth Proportional to 2,262.54, 3,390.15 and 1,289.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,262.54 : 3,390.15 = 1,289.34 : x
2. Step 2: Convert to fraction form
   2,262.54/3,390.15 = 1,289.34/x
3. Step 3: Cross multiply
   2,262.54x = 3,390.15 × 1,289.34
4. Step 4: Simplify right side
   2,262.54x = 4,371,056.00
5. Step 5: Solve for x
   x = 4,371,056.00/2,262.54
6. Step 6: Final answer
   x = 1,931.92