Finding the Fourth Proportional to 1,667.53, 2,501.61 and 572.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.53 : 2,501.61 = 572.05 : x
2. Step 2: Convert to fraction form
   1,667.53/2,501.61 = 572.05/x
3. Step 3: Cross multiply
   1,667.53x = 2,501.61 × 572.05
4. Step 4: Simplify right side
   1,667.53x = 1,431,046.00
5. Step 5: Solve for x
   x = 1,431,046.00/1,667.53
6. Step 6: Final answer
   x = 858.18