Finding the Fourth Proportional to 1,719.72, 2,372.86 and 1,011.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.72 : 2,372.86 = 1,011.37 : x
2. Step 2: Convert to fraction form
   1,719.72/2,372.86 = 1,011.37/x
3. Step 3: Cross multiply
   1,719.72x = 2,372.86 × 1,011.37
4. Step 4: Simplify right side
   1,719.72x = 2,399,839.42
5. Step 5: Solve for x
   x = 2,399,839.42/1,719.72
6. Step 6: Final answer
   x = 1,395.48