Finding the Fourth Proportional to 1,373.59, 1,895.32 and 775.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.59 : 1,895.32 = 775.81 : x
2. Step 2: Convert to fraction form
   1,373.59/1,895.32 = 775.81/x
3. Step 3: Cross multiply
   1,373.59x = 1,895.32 × 775.81
4. Step 4: Simplify right side
   1,373.59x = 1,470,405.81
5. Step 5: Solve for x
   x = 1,470,405.81/1,373.59
6. Step 6: Final answer
   x = 1,070.48