Finding the Fourth Proportional to 1,667.61, 2,498.16 and 937.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.61 : 2,498.16 = 937.65 : x
2. Step 2: Convert to fraction form
   1,667.61/2,498.16 = 937.65/x
3. Step 3: Cross multiply
   1,667.61x = 2,498.16 × 937.65
4. Step 4: Simplify right side
   1,667.61x = 2,342,399.72
5. Step 5: Solve for x
   x = 2,342,399.72/1,667.61
6. Step 6: Final answer
   x = 1,404.64