Finding the Fourth Proportional to 1,662.80, 2,293.80 and 1,351.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.80 : 2,293.80 = 1,351.76 : x
2. Step 2: Convert to fraction form
   1,662.80/2,293.80 = 1,351.76/x
3. Step 3: Cross multiply
   1,662.80x = 2,293.80 × 1,351.76
4. Step 4: Simplify right side
   1,662.80x = 3,100,667.09
5. Step 5: Solve for x
   x = 3,100,667.09/1,662.80
6. Step 6: Final answer
   x = 1,864.73