Finding the Fourth Proportional to 1,047,644.55, 1,444,370.56 and 684,437.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047,644.55 : 1,444,370.56 = 684,437.31 : x
2. Step 2: Convert to fraction form
   1,047,644.55/1,444,370.56 = 684,437.31/x
3. Step 3: Cross multiply
   1,047,644.55x = 1,444,370.56 × 684,437.31
4. Step 4: Simplify right side
   1,047,644.55x = 988,581,099,018.50
5. Step 5: Solve for x
   x = 988,581,099,018.50/1,047,644.55
6. Step 6: Final answer
   x = 943,622.62