Finding the Fourth Proportional to 2,256,456.52, 3,113,891.57 and 1,223,961.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256,456.52 : 3,113,891.57 = 1,223,961.72 : x
2. Step 2: Convert to fraction form
   2,256,456.52/3,113,891.57 = 1,223,961.72/x
3. Step 3: Cross multiply
   2,256,456.52x = 3,113,891.57 × 1,223,961.72
4. Step 4: Simplify right side
   2,256,456.52x = 3,811,284,075,790.89
5. Step 5: Solve for x
   x = 3,811,284,075,790.89/2,256,456.52
6. Step 6: Final answer
   x = 1,689,057.17