Finding the Fourth Proportional to 2,106,061.80, 2,906,114.88 and 1,188,237.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106,061.80 : 2,906,114.88 = 1,188,237.28 : x
2. Step 2: Convert to fraction form
   2,106,061.80/2,906,114.88 = 1,188,237.28/x
3. Step 3: Cross multiply
   2,106,061.80x = 2,906,114.88 × 1,188,237.28
4. Step 4: Simplify right side
   2,106,061.80x = 3,453,154,040,378.73
5. Step 5: Solve for x
   x = 3,453,154,040,378.73/2,106,061.80
6. Step 6: Final answer
   x = 1,639,626.17