Finding the Fourth Proportional to 1,091,659.98, 1,635,679.68 and 663,901.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091,659.98 : 1,635,679.68 = 663,901.98 : x
2. Step 2: Convert to fraction form
   1,091,659.98/1,635,679.68 = 663,901.98/x
3. Step 3: Cross multiply
   1,091,659.98x = 1,635,679.68 × 663,901.98
4. Step 4: Simplify right side
   1,091,659.98x = 1,085,930,978,197.77
5. Step 5: Solve for x
   x = 1,085,930,978,197.77/1,091,659.98
6. Step 6: Final answer
   x = 994,752.03