Finding the Fourth Proportional to 1,667.10, 2,500.47 and 800.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.10 : 2,500.47 = 800.94 : x
2. Step 2: Convert to fraction form
   1,667.10/2,500.47 = 800.94/x
3. Step 3: Cross multiply
   1,667.10x = 2,500.47 × 800.94
4. Step 4: Simplify right side
   1,667.10x = 2,002,726.44
5. Step 5: Solve for x
   x = 2,002,726.44/1,667.10
6. Step 6: Final answer
   x = 1,201.32