Finding the Fourth Proportional to 1,502.72, 2,074.33 and 1,345.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.72 : 2,074.33 = 1,345.08 : x
2. Step 2: Convert to fraction form
   1,502.72/2,074.33 = 1,345.08/x
3. Step 3: Cross multiply
   1,502.72x = 2,074.33 × 1,345.08
4. Step 4: Simplify right side
   1,502.72x = 2,790,135.89
5. Step 5: Solve for x
   x = 2,790,135.89/1,502.72
6. Step 6: Final answer
   x = 1,856.72