Finding the Fourth Proportional to 1,731.72, 2,593.78 and 1,113.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,731.72 : 2,593.78 = 1,113.42 : x
2. Step 2: Convert to fraction form
   1,731.72/2,593.78 = 1,113.42/x
3. Step 3: Cross multiply
   1,731.72x = 2,593.78 × 1,113.42
4. Step 4: Simplify right side
   1,731.72x = 2,887,966.53
5. Step 5: Solve for x
   x = 2,887,966.53/1,731.72
6. Step 6: Final answer
   x = 1,667.69