Finding the Fourth Proportional to 1,395.02, 1,925.15 and 805.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.02 : 1,925.15 = 805.58 : x
2. Step 2: Convert to fraction form
   1,395.02/1,925.15 = 805.58/x
3. Step 3: Cross multiply
   1,395.02x = 1,925.15 × 805.58
4. Step 4: Simplify right side
   1,395.02x = 1,550,848.68
5. Step 5: Solve for x
   x = 1,550,848.68/1,395.02
6. Step 6: Final answer
   x = 1,111.71