Finding the Fourth Proportional to 1,686.32, 2,326.23 and 1,371.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686.32 : 2,326.23 = 1,371.93 : x
2. Step 2: Convert to fraction form
   1,686.32/2,326.23 = 1,371.93/x
3. Step 3: Cross multiply
   1,686.32x = 2,326.23 × 1,371.93
4. Step 4: Simplify right side
   1,686.32x = 3,191,424.72
5. Step 5: Solve for x
   x = 3,191,424.72/1,686.32
6. Step 6: Final answer
   x = 1,892.54