Finding the Fourth Proportional to 1,342.59, 1,852.35 and 775.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.59 : 1,852.35 = 775.35 : x
2. Step 2: Convert to fraction form
   1,342.59/1,852.35 = 775.35/x
3. Step 3: Cross multiply
   1,342.59x = 1,852.35 × 775.35
4. Step 4: Simplify right side
   1,342.59x = 1,436,219.57
5. Step 5: Solve for x
   x = 1,436,219.57/1,342.59
6. Step 6: Final answer
   x = 1,069.74