Finding the Fourth Proportional to 2,269,643.37, 3,132,013.57 and 1,237,128.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269,643.37 : 3,132,013.57 = 1,237,128.43 : x
2. Step 2: Convert to fraction form
   2,269,643.37/3,132,013.57 = 1,237,128.43/x
3. Step 3: Cross multiply
   2,269,643.37x = 3,132,013.57 × 1,237,128.43
4. Step 4: Simplify right side
   2,269,643.37x = 3,874,703,030,592.80
5. Step 5: Solve for x
   x = 3,874,703,030,592.80/2,269,643.37
6. Step 6: Final answer
   x = 1,707,185.84