Finding the Fourth Proportional to 1,364.43, 1,883.16 and 774.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.43 : 1,883.16 = 774.99 : x
2. Step 2: Convert to fraction form
   1,364.43/1,883.16 = 774.99/x
3. Step 3: Cross multiply
   1,364.43x = 1,883.16 × 774.99
4. Step 4: Simplify right side
   1,364.43x = 1,459,430.17
5. Step 5: Solve for x
   x = 1,459,430.17/1,364.43
6. Step 6: Final answer
   x = 1,069.63