Finding the Fourth Proportional to 2,189,274.71, 3,021,167.72 and 1,222,420.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189,274.71 : 3,021,167.72 = 1,222,420.19 : x
2. Step 2: Convert to fraction form
   2,189,274.71/3,021,167.72 = 1,222,420.19/x
3. Step 3: Cross multiply
   2,189,274.71x = 3,021,167.72 × 1,222,420.19
4. Step 4: Simplify right side
   2,189,274.71x = 3,693,136,418,304.27
5. Step 5: Solve for x
   x = 3,693,136,418,304.27/2,189,274.71
6. Step 6: Final answer
   x = 1,686,922.34