Finding the Fourth Proportional to 2,269,643.12, 3,132,013.23 and 1,237,128.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269,643.12 : 3,132,013.23 = 1,237,128.18 : x
2. Step 2: Convert to fraction form
   2,269,643.12/3,132,013.23 = 1,237,128.18/x
3. Step 3: Cross multiply
   2,269,643.12x = 3,132,013.23 × 1,237,128.18
4. Step 4: Simplify right side
   2,269,643.12x = 3,874,701,826,965.82
5. Step 5: Solve for x
   x = 3,874,701,826,965.82/2,269,643.12
6. Step 6: Final answer
   x = 1,707,185.50