Finding the Fourth Proportional to 2,086,548.69, 3,130,035.21 and 720,144.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086,548.69 : 3,130,035.21 = 720,144.56 : x
2. Step 2: Convert to fraction form
   2,086,548.69/3,130,035.21 = 720,144.56/x
3. Step 3: Cross multiply
   2,086,548.69x = 3,130,035.21 × 720,144.56
4. Step 4: Simplify right side
   2,086,548.69x = 2,254,077,819,308.60
5. Step 5: Solve for x
   x = 2,254,077,819,308.60/2,086,548.69
6. Step 6: Final answer
   x = 1,080,290.06