Finding the Fourth Proportional to 1,363.64, 1,881.83 and 774.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.64 : 1,881.83 = 774.37 : x
2. Step 2: Convert to fraction form
   1,363.64/1,881.83 = 774.37/x
3. Step 3: Cross multiply
   1,363.64x = 1,881.83 × 774.37
4. Step 4: Simplify right side
   1,363.64x = 1,457,219.42
5. Step 5: Solve for x
   x = 1,457,219.42/1,363.64
6. Step 6: Final answer
   x = 1,068.62