Finding the Fourth Proportional to 1,363.30, 1,881.43 and 773.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.30 : 1,881.43 = 773.96 : x
2. Step 2: Convert to fraction form
   1,363.30/1,881.43 = 773.96/x
3. Step 3: Cross multiply
   1,363.30x = 1,881.43 × 773.96
4. Step 4: Simplify right side
   1,363.30x = 1,456,140.22
5. Step 5: Solve for x
   x = 1,456,140.22/1,363.30
6. Step 6: Final answer
   x = 1,068.10