Finding the Fourth Proportional to 1,667.52, 2,499.06 and 1,206.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.52 : 2,499.06 = 1,206.84 : x
2. Step 2: Convert to fraction form
   1,667.52/2,499.06 = 1,206.84/x
3. Step 3: Cross multiply
   1,667.52x = 2,499.06 × 1,206.84
4. Step 4: Simplify right side
   1,667.52x = 3,015,965.57
5. Step 5: Solve for x
   x = 3,015,965.57/1,667.52
6. Step 6: Final answer
   x = 1,808.65