Finding the Fourth Proportional to 1,410.56, 1,946.56 and 781.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.56 : 1,946.56 = 781.08 : x
2. Step 2: Convert to fraction form
   1,410.56/1,946.56 = 781.08/x
3. Step 3: Cross multiply
   1,410.56x = 1,946.56 × 781.08
4. Step 4: Simplify right side
   1,410.56x = 1,520,415.18
5. Step 5: Solve for x
   x = 1,520,415.18/1,410.56
6. Step 6: Final answer
   x = 1,077.88