Finding the Fourth Proportional to 1,667.56, 2,502.90 and 1,052.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.56 : 2,502.90 = 1,052.38 : x
2. Step 2: Convert to fraction form
   1,667.56/2,502.90 = 1,052.38/x
3. Step 3: Cross multiply
   1,667.56x = 2,502.90 × 1,052.38
4. Step 4: Simplify right side
   1,667.56x = 2,634,001.90
5. Step 5: Solve for x
   x = 2,634,001.90/1,667.56
6. Step 6: Final answer
   x = 1,579.55