Finding the Fourth Proportional to 1,667.20, 2,501.58 and 801.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.20 : 2,501.58 = 801.52 : x
2. Step 2: Convert to fraction form
   1,667.20/2,501.58 = 801.52/x
3. Step 3: Cross multiply
   1,667.20x = 2,501.58 × 801.52
4. Step 4: Simplify right side
   1,667.20x = 2,005,066.40
5. Step 5: Solve for x
   x = 2,005,066.40/1,667.20
6. Step 6: Final answer
   x = 1,202.65