Finding the Fourth Proportional to 1,667.48, 2,499.04 and 1,206.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.48 : 2,499.04 = 1,206.80 : x
2. Step 2: Convert to fraction form
   1,667.48/2,499.04 = 1,206.80/x
3. Step 3: Cross multiply
   1,667.48x = 2,499.04 × 1,206.80
4. Step 4: Simplify right side
   1,667.48x = 3,015,841.47
5. Step 5: Solve for x
   x = 3,015,841.47/1,667.48
6. Step 6: Final answer
   x = 1,808.62