Finding the Fourth Proportional to 1,553,278.82, 2,143,455.82 and 864,986.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553,278.82 : 2,143,455.82 = 864,986.18 : x
2. Step 2: Convert to fraction form
   1,553,278.82/2,143,455.82 = 864,986.18/x
3. Step 3: Cross multiply
   1,553,278.82x = 2,143,455.82 × 864,986.18
4. Step 4: Simplify right side
   1,553,278.82x = 1,854,059,648,860.82
5. Step 5: Solve for x
   x = 1,854,059,648,860.82/1,553,278.82
6. Step 6: Final answer
   x = 1,193,642.53