Finding the Fourth Proportional to 1,123,162.56, 1,683,253.44 and 491,388.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,162.56 : 1,683,253.44 = 491,388.48 : x
2. Step 2: Convert to fraction form
   1,123,162.56/1,683,253.44 = 491,388.48/x
3. Step 3: Cross multiply
   1,123,162.56x = 1,683,253.44 × 491,388.48
4. Step 4: Simplify right side
   1,123,162.56x = 827,131,349,336.37
5. Step 5: Solve for x
   x = 827,131,349,336.37/1,123,162.56
6. Step 6: Final answer
   x = 736,430.66