Finding the Fourth Proportional to 1,447,145.23, 2,172,018.89 and 773,802.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447,145.23 : 2,172,018.89 = 773,802.09 : x
2. Step 2: Convert to fraction form
   1,447,145.23/2,172,018.89 = 773,802.09/x
3. Step 3: Cross multiply
   1,447,145.23x = 2,172,018.89 × 773,802.09
4. Step 4: Simplify right side
   1,447,145.23x = 1,680,712,741,872.38
5. Step 5: Solve for x
   x = 1,680,712,741,872.38/1,447,145.23
6. Step 6: Final answer
   x = 1,161,398.81