Finding the Fourth Proportional to 2,172,909.31, 3,262,563.53 and 1,215,241.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,909.31 : 3,262,563.53 = 1,215,241.23 : x
2. Step 2: Convert to fraction form
   2,172,909.31/3,262,563.53 = 1,215,241.23/x
3. Step 3: Cross multiply
   2,172,909.31x = 3,262,563.53 × 1,215,241.23
4. Step 4: Simplify right side
   2,172,909.31x = 3,964,801,717,150.34
5. Step 5: Solve for x
   x = 3,964,801,717,150.34/2,172,909.31
6. Step 6: Final answer
   x = 1,824,651.26