Finding the Fourth Proportional to 2,499,567, 3,749,989.86 and 726,639

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,567 : 3,749,989.86 = 726,639 : x
2. Step 2: Convert to fraction form
   2,499,567/3,749,989.86 = 726,639/x
3. Step 3: Cross multiply
   2,499,567x = 3,749,989.86 × 726,639
4. Step 4: Simplify right side
   2,499,567x = 2,724,888,881,880.54
5. Step 5: Solve for x
   x = 2,724,888,881,880.54/2,499,567
6. Step 6: Final answer
   x = 1,090,144.37