Finding the Fourth Proportional to 2,139,643.21, 2,953,010.35 and 1,324,109.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,643.21 : 2,953,010.35 = 1,324,109.56 : x
2. Step 2: Convert to fraction form
   2,139,643.21/2,953,010.35 = 1,324,109.56/x
3. Step 3: Cross multiply
   2,139,643.21x = 2,953,010.35 × 1,324,109.56
4. Step 4: Simplify right side
   2,139,643.21x = 3,910,109,220,448.89
5. Step 5: Solve for x
   x = 3,910,109,220,448.89/2,139,643.21
6. Step 6: Final answer
   x = 1,827,458.53