Finding the Fourth Proportional to 1,371.53, 1,892.34 and 782.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.53 : 1,892.34 = 782.06 : x
2. Step 2: Convert to fraction form
   1,371.53/1,892.34 = 782.06/x
3. Step 3: Cross multiply
   1,371.53x = 1,892.34 × 782.06
4. Step 4: Simplify right side
   1,371.53x = 1,479,913.96
5. Step 5: Solve for x
   x = 1,479,913.96/1,371.53
6. Step 6: Final answer
   x = 1,079.03