Finding the Fourth Proportional to 2,260,629.19, 3,119,655.72 and 1,228,128.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,260,629.19 : 3,119,655.72 = 1,228,128.72 : x
2. Step 2: Convert to fraction form
   2,260,629.19/3,119,655.72 = 1,228,128.72/x
3. Step 3: Cross multiply
   2,260,629.19x = 3,119,655.72 × 1,228,128.72
4. Step 4: Simplify right side
   2,260,629.19x = 3,831,338,786,244.28
5. Step 5: Solve for x
   x = 3,831,338,786,244.28/2,260,629.19
6. Step 6: Final answer
   x = 1,694,810.81