Finding the Fourth Proportional to 1,667.55, 2,502.83 and 888.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.55 : 2,502.83 = 888.20 : x
2. Step 2: Convert to fraction form
   1,667.55/2,502.83 = 888.20/x
3. Step 3: Cross multiply
   1,667.55x = 2,502.83 × 888.20
4. Step 4: Simplify right side
   1,667.55x = 2,223,026.88
5. Step 5: Solve for x
   x = 2,223,026.88/1,667.55
6. Step 6: Final answer
   x = 1,333.11