Finding the Fourth Proportional to 1,422,826.56, 2,134,243.49 and 581,378.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422,826.56 : 2,134,243.49 = 581,378.31 : x
2. Step 2: Convert to fraction form
   1,422,826.56/2,134,243.49 = 581,378.31/x
3. Step 3: Cross multiply
   1,422,826.56x = 2,134,243.49 × 581,378.31
4. Step 4: Simplify right side
   1,422,826.56x = 1,240,802,870,437.81
5. Step 5: Solve for x
   x = 1,240,802,870,437.81/1,422,826.56
6. Step 6: Final answer
   x = 872,068.95