Finding the Fourth Proportional to 2,145,217.39, 2,959,666.72 and 1,227,112.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,217.39 : 2,959,666.72 = 1,227,112.05 : x
2. Step 2: Convert to fraction form
   2,145,217.39/2,959,666.72 = 1,227,112.05/x
3. Step 3: Cross multiply
   2,145,217.39x = 2,959,666.72 × 1,227,112.05
4. Step 4: Simplify right side
   2,145,217.39x = 3,631,842,696,095.98
5. Step 5: Solve for x
   x = 3,631,842,696,095.98/2,145,217.39
6. Step 6: Final answer
   x = 1,692,995.18