Finding the Fourth Proportional to 2,120,024.50, 2,925,633.81 and 1,215,131.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120,024.50 : 2,925,633.81 = 1,215,131.38 : x
2. Step 2: Convert to fraction form
   2,120,024.50/2,925,633.81 = 1,215,131.38/x
3. Step 3: Cross multiply
   2,120,024.50x = 2,925,633.81 × 1,215,131.38
4. Step 4: Simplify right side
   2,120,024.50x = 3,555,029,448,919.96
5. Step 5: Solve for x
   x = 3,555,029,448,919.96/2,120,024.50
6. Step 6: Final answer
   x = 1,676,881.30