Finding the Fourth Proportional to 1,489,151.52, 2,055,019.68 and 810,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,489,151.52 : 2,055,019.68 = 810,090.72 : x
2. Step 2: Convert to fraction form
   1,489,151.52/2,055,019.68 = 810,090.72/x
3. Step 3: Cross multiply
   1,489,151.52x = 2,055,019.68 × 810,090.72
4. Step 4: Simplify right side
   1,489,151.52x = 1,664,752,372,185.37
5. Step 5: Solve for x
   x = 1,664,752,372,185.37/1,489,151.52
6. Step 6: Final answer
   x = 1,117,920.07