Finding the Fourth Proportional to 1,090,105.20, 1,635,158.34 and 490,365.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090,105.20 : 1,635,158.34 = 490,365.72 : x
2. Step 2: Convert to fraction form
   1,090,105.20/1,635,158.34 = 490,365.72/x
3. Step 3: Cross multiply
   1,090,105.20x = 1,635,158.34 × 490,365.72
4. Step 4: Simplify right side
   1,090,105.20x = 801,825,596,708.11
5. Step 5: Solve for x
   x = 801,825,596,708.11/1,090,105.20
6. Step 6: Final answer
   x = 735,548.82