Finding the Fourth Proportional to 1,395.08, 1,925.22 and 774.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.08 : 1,925.22 = 774.12 : x
2. Step 2: Convert to fraction form
   1,395.08/1,925.22 = 774.12/x
3. Step 3: Cross multiply
   1,395.08x = 1,925.22 × 774.12
4. Step 4: Simplify right side
   1,395.08x = 1,490,351.31
5. Step 5: Solve for x
   x = 1,490,351.31/1,395.08
6. Step 6: Final answer
   x = 1,068.29