Finding the Fourth Proportional to 1,667.74, 2,300.28 and 1,170.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.74 : 2,300.28 = 1,170.50 : x
2. Step 2: Convert to fraction form
   1,667.74/2,300.28 = 1,170.50/x
3. Step 3: Cross multiply
   1,667.74x = 2,300.28 × 1,170.50
4. Step 4: Simplify right side
   1,667.74x = 2,692,477.74
5. Step 5: Solve for x
   x = 2,692,477.74/1,667.74
6. Step 6: Final answer
   x = 1,614.45