Finding the Fourth Proportional to 1,667.86, 2,498.61 and 935.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.86 : 2,498.61 = 935.22 : x
2. Step 2: Convert to fraction form
   1,667.86/2,498.61 = 935.22/x
3. Step 3: Cross multiply
   1,667.86x = 2,498.61 × 935.22
4. Step 4: Simplify right side
   1,667.86x = 2,336,750.04
5. Step 5: Solve for x
   x = 2,336,750.04/1,667.86
6. Step 6: Final answer
   x = 1,401.05