Finding the Fourth Proportional to 1,410,722.72, 1,946,796.90 and 766,143.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410,722.72 : 1,946,796.90 = 766,143.08 : x
2. Step 2: Convert to fraction form
   1,410,722.72/1,946,796.90 = 766,143.08/x
3. Step 3: Cross multiply
   1,410,722.72x = 1,946,796.90 × 766,143.08
4. Step 4: Simplify right side
   1,410,722.72x = 1,491,524,973,100.45
5. Step 5: Solve for x
   x = 1,491,524,973,100.45/1,410,722.72
6. Step 6: Final answer
   x = 1,057,277.20