Finding the Fourth Proportional to 1,091,630.01, 1,635,634.72 and 663,871.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091,630.01 : 1,635,634.72 = 663,871.95 : x
2. Step 2: Convert to fraction form
   1,091,630.01/1,635,634.72 = 663,871.95/x
3. Step 3: Cross multiply
   1,091,630.01x = 1,635,634.72 × 663,871.95
4. Step 4: Simplify right side
   1,091,630.01x = 1,085,852,011,883.94
5. Step 5: Solve for x
   x = 1,085,852,011,883.94/1,091,630.01
6. Step 6: Final answer
   x = 994,707.00