Finding the Fourth Proportional to 2,154,209.54, 3,231,304.59 and 556,636.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,209.54 : 3,231,304.59 = 556,636.82 : x
2. Step 2: Convert to fraction form
   2,154,209.54/3,231,304.59 = 556,636.82/x
3. Step 3: Cross multiply
   2,154,209.54x = 3,231,304.59 × 556,636.82
4. Step 4: Simplify right side
   2,154,209.54x = 1,798,663,111,429.00
5. Step 5: Solve for x
   x = 1,798,663,111,429.00/2,154,209.54
6. Step 6: Final answer
   x = 834,952.72