Finding the Fourth Proportional to 1,363.86, 1,882.24 and 774.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.86 : 1,882.24 = 774.45 : x
2. Step 2: Convert to fraction form
   1,363.86/1,882.24 = 774.45/x
3. Step 3: Cross multiply
   1,363.86x = 1,882.24 × 774.45
4. Step 4: Simplify right side
   1,363.86x = 1,457,698.83
5. Step 5: Solve for x
   x = 1,457,698.83/1,363.86
6. Step 6: Final answer
   x = 1,068.80