Finding the Fourth Proportional to 1,972.72, 2,723.17 and 1,345.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,972.72 : 2,723.17 = 1,345.32 : x
2. Step 2: Convert to fraction form
   1,972.72/2,723.17 = 1,345.32/x
3. Step 3: Cross multiply
   1,972.72x = 2,723.17 × 1,345.32
4. Step 4: Simplify right side
   1,972.72x = 3,663,535.06
5. Step 5: Solve for x
   x = 3,663,535.06/1,972.72
6. Step 6: Final answer
   x = 1,857.10