Finding the Fourth Proportional to 1,667.58, 2,501.73 and 1,052.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.58 : 2,501.73 = 1,052.07 : x
2. Step 2: Convert to fraction form
   1,667.58/2,501.73 = 1,052.07/x
3. Step 3: Cross multiply
   1,667.58x = 2,501.73 × 1,052.07
4. Step 4: Simplify right side
   1,667.58x = 2,631,995.08
5. Step 5: Solve for x
   x = 2,631,995.08/1,667.58
6. Step 6: Final answer
   x = 1,578.33