Finding the Fourth Proportional to 1,989,196.56, 2,983,791.60 and 493,288.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989,196.56 : 2,983,791.60 = 493,288.56 : x
2. Step 2: Convert to fraction form
   1,989,196.56/2,983,791.60 = 493,288.56/x
3. Step 3: Cross multiply
   1,989,196.56x = 2,983,791.60 × 493,288.56
4. Step 4: Simplify right side
   1,989,196.56x = 1,471,870,261,704.10
5. Step 5: Solve for x
   x = 1,471,870,261,704.10/1,989,196.56
6. Step 6: Final answer
   x = 739,932.04