Finding the Fourth Proportional to 1,395.98, 1,926.10 and 806.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.98 : 1,926.10 = 806.52 : x
2. Step 2: Convert to fraction form
   1,395.98/1,926.10 = 806.52/x
3. Step 3: Cross multiply
   1,395.98x = 1,926.10 × 806.52
4. Step 4: Simplify right side
   1,395.98x = 1,553,438.17
5. Step 5: Solve for x
   x = 1,553,438.17/1,395.98
6. Step 6: Final answer
   x = 1,112.79