Finding the Fourth Proportional to 1,433,900.16, 1,978,826.83 and 780,569.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,900.16 : 1,978,826.83 = 780,569.69 : x
2. Step 2: Convert to fraction form
   1,433,900.16/1,978,826.83 = 780,569.69/x
3. Step 3: Cross multiply
   1,433,900.16x = 1,978,826.83 × 780,569.69
4. Step 4: Simplify right side
   1,433,900.16x = 1,544,612,233,411.22
5. Step 5: Solve for x
   x = 1,544,612,233,411.22/1,433,900.16
6. Step 6: Final answer
   x = 1,077,210.45