Finding the Fourth Proportional to 1,395.51, 1,925.82 and 806.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.51 : 1,925.82 = 806.24 : x
2. Step 2: Convert to fraction form
   1,395.51/1,925.82 = 806.24/x
3. Step 3: Cross multiply
   1,395.51x = 1,925.82 × 806.24
4. Step 4: Simplify right side
   1,395.51x = 1,552,663.49
5. Step 5: Solve for x
   x = 1,552,663.49/1,395.51
6. Step 6: Final answer
   x = 1,112.61