Finding the Fourth Proportional to 1,667.07, 2,499.84 and 571.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.07 : 2,499.84 = 571.14 : x
2. Step 2: Convert to fraction form
   1,667.07/2,499.84 = 571.14/x
3. Step 3: Cross multiply
   1,667.07x = 2,499.84 × 571.14
4. Step 4: Simplify right side
   1,667.07x = 1,427,758.62
5. Step 5: Solve for x
   x = 1,427,758.62/1,667.07
6. Step 6: Final answer
   x = 856.45