Finding the Fourth Proportional to 1,373.09, 1,894.89 and 775.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.09 : 1,894.89 = 775.53 : x
2. Step 2: Convert to fraction form
   1,373.09/1,894.89 = 775.53/x
3. Step 3: Cross multiply
   1,373.09x = 1,894.89 × 775.53
4. Step 4: Simplify right side
   1,373.09x = 1,469,546.95
5. Step 5: Solve for x
   x = 1,469,546.95/1,373.09
6. Step 6: Final answer
   x = 1,070.25