Finding the Fourth Proportional to 969,978.84, 1,338,107.21 and 753,638.37

Step by Step Solution

1. Step 1: Write the proportion equation
   969,978.84 : 1,338,107.21 = 753,638.37 : x
2. Step 2: Convert to fraction form
   969,978.84/1,338,107.21 = 753,638.37/x
3. Step 3: Cross multiply
   969,978.84x = 1,338,107.21 × 753,638.37
4. Step 4: Simplify right side
   969,978.84x = 1,008,448,932,861.46
5. Step 5: Solve for x
   x = 1,008,448,932,861.46/969,978.84
6. Step 6: Final answer
   x = 1,039,660.75