Finding the Fourth Proportional to 2,209,878.40, 3,308,658.72 and 1,128,063.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209,878.40 : 3,308,658.72 = 1,128,063.82 : x
2. Step 2: Convert to fraction form
   2,209,878.40/3,308,658.72 = 1,128,063.82/x
3. Step 3: Cross multiply
   2,209,878.40x = 3,308,658.72 × 1,128,063.82
4. Step 4: Simplify right side
   2,209,878.40x = 3,732,378,194,759.51
5. Step 5: Solve for x
   x = 3,732,378,194,759.51/2,209,878.40
6. Step 6: Final answer
   x = 1,688,951.84