Finding the Fourth Proportional to 2,290,889, 3,161,426.85 and 1,272,388.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290,889 : 3,161,426.85 = 1,272,388.52 : x
2. Step 2: Convert to fraction form
   2,290,889/3,161,426.85 = 1,272,388.52/x
3. Step 3: Cross multiply
   2,290,889x = 3,161,426.85 × 1,272,388.52
4. Step 4: Simplify right side
   2,290,889x = 4,022,563,230,759.76
5. Step 5: Solve for x
   x = 4,022,563,230,759.76/2,290,889
6. Step 6: Final answer
   x = 1,755,896.17