Finding the Fourth Proportional to 1,111,833.73, 1,669,982.55 and 663,429.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111,833.73 : 1,669,982.55 = 663,429.88 : x
2. Step 2: Convert to fraction form
   1,111,833.73/1,669,982.55 = 663,429.88/x
3. Step 3: Cross multiply
   1,111,833.73x = 1,669,982.55 × 663,429.88
4. Step 4: Simplify right side
   1,111,833.73x = 1,107,916,322,748.59
5. Step 5: Solve for x
   x = 1,107,916,322,748.59/1,111,833.73
6. Step 6: Final answer
   x = 996,476.62