Finding the Fourth Proportional to 1,419.84, 1,958.99 and 915.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.84 : 1,958.99 = 915.48 : x
2. Step 2: Convert to fraction form
   1,419.84/1,958.99 = 915.48/x
3. Step 3: Cross multiply
   1,419.84x = 1,958.99 × 915.48
4. Step 4: Simplify right side
   1,419.84x = 1,793,411.59
5. Step 5: Solve for x
   x = 1,793,411.59/1,419.84
6. Step 6: Final answer
   x = 1,263.11