Finding the Fourth Proportional to 1,363.64, 1,881.98 and 774.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.64 : 1,881.98 = 774.29 : x
2. Step 2: Convert to fraction form
   1,363.64/1,881.98 = 774.29/x
3. Step 3: Cross multiply
   1,363.64x = 1,881.98 × 774.29
4. Step 4: Simplify right side
   1,363.64x = 1,457,190.82
5. Step 5: Solve for x
   x = 1,457,190.82/1,363.64
6. Step 6: Final answer
   x = 1,068.60