Finding the Fourth Proportional to 1,719.78, 2,373.35 and 973.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.78 : 2,373.35 = 973.73 : x
2. Step 2: Convert to fraction form
   1,719.78/2,373.35 = 973.73/x
3. Step 3: Cross multiply
   1,719.78x = 2,373.35 × 973.73
4. Step 4: Simplify right side
   1,719.78x = 2,311,002.10
5. Step 5: Solve for x
   x = 2,311,002.10/1,719.78
6. Step 6: Final answer
   x = 1,343.78