Finding the Fourth Proportional to 2,140,315.56, 3,210,804.90 and 720,260.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,315.56 : 3,210,804.90 = 720,260.82 : x
2. Step 2: Convert to fraction form
   2,140,315.56/3,210,804.90 = 720,260.82/x
3. Step 3: Cross multiply
   2,140,315.56x = 3,210,804.90 × 720,260.82
4. Step 4: Simplify right side
   2,140,315.56x = 2,312,616,970,134.02
5. Step 5: Solve for x
   x = 2,312,616,970,134.02/2,140,315.56
6. Step 6: Final answer
   x = 1,080,502.81