Finding the Fourth Proportional to 1,410.49, 1,946.41 and 781.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.49 : 1,946.41 = 781.04 : x
2. Step 2: Convert to fraction form
   1,410.49/1,946.41 = 781.04/x
3. Step 3: Cross multiply
   1,410.49x = 1,946.41 × 781.04
4. Step 4: Simplify right side
   1,410.49x = 1,520,210.43
5. Step 5: Solve for x
   x = 1,520,210.43/1,410.49
6. Step 6: Final answer
   x = 1,077.79