Finding the Fourth Proportional to 1,395.52, 1,925.73 and 766.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.52 : 1,925.73 = 766.06 : x
2. Step 2: Convert to fraction form
   1,395.52/1,925.73 = 766.06/x
3. Step 3: Cross multiply
   1,395.52x = 1,925.73 × 766.06
4. Step 4: Simplify right side
   1,395.52x = 1,475,224.72
5. Step 5: Solve for x
   x = 1,475,224.72/1,395.52
6. Step 6: Final answer
   x = 1,057.11