Finding the Fourth Proportional to 1,667.15, 2,300.39 and 994.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.15 : 2,300.39 = 994.75 : x
2. Step 2: Convert to fraction form
   1,667.15/2,300.39 = 994.75/x
3. Step 3: Cross multiply
   1,667.15x = 2,300.39 × 994.75
4. Step 4: Simplify right side
   1,667.15x = 2,288,308.76
5. Step 5: Solve for x
   x = 2,288,308.76/1,667.15
6. Step 6: Final answer
   x = 1,372.59