Finding the Fourth Proportional to 1,679.38, 2,317.27 and 933.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679.38 : 2,317.27 = 933.32 : x
2. Step 2: Convert to fraction form
   1,679.38/2,317.27 = 933.32/x
3. Step 3: Cross multiply
   1,679.38x = 2,317.27 × 933.32
4. Step 4: Simplify right side
   1,679.38x = 2,162,746.31
5. Step 5: Solve for x
   x = 2,162,746.31/1,679.38
6. Step 6: Final answer
   x = 1,287.82