Finding the Fourth Proportional to 1,667.02, 2,499.93 and 571.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.02 : 2,499.93 = 571.09 : x
2. Step 2: Convert to fraction form
   1,667.02/2,499.93 = 571.09/x
3. Step 3: Cross multiply
   1,667.02x = 2,499.93 × 571.09
4. Step 4: Simplify right side
   1,667.02x = 1,427,685.02
5. Step 5: Solve for x
   x = 1,427,685.02/1,667.02
6. Step 6: Final answer
   x = 856.43