Finding the Fourth Proportional to 1,419.96, 1,958.44 and 972.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.96 : 1,958.44 = 972.10 : x
2. Step 2: Convert to fraction form
   1,419.96/1,958.44 = 972.10/x
3. Step 3: Cross multiply
   1,419.96x = 1,958.44 × 972.10
4. Step 4: Simplify right side
   1,419.96x = 1,903,799.52
5. Step 5: Solve for x
   x = 1,903,799.52/1,419.96
6. Step 6: Final answer
   x = 1,340.74