Finding the Fourth Proportional to 1,686.84, 2,327.58 and 1,023.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686.84 : 2,327.58 = 1,023.60 : x
2. Step 2: Convert to fraction form
   1,686.84/2,327.58 = 1,023.60/x
3. Step 3: Cross multiply
   1,686.84x = 2,327.58 × 1,023.60
4. Step 4: Simplify right side
   1,686.84x = 2,382,510.89
5. Step 5: Solve for x
   x = 2,382,510.89/1,686.84
6. Step 6: Final answer
   x = 1,412.41