Finding the Fourth Proportional to 1,243,315.24, 1,864,966.71 and 1,074,321.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,315.24 : 1,864,966.71 = 1,074,321.31 : x
2. Step 2: Convert to fraction form
   1,243,315.24/1,864,966.71 = 1,074,321.31/x
3. Step 3: Cross multiply
   1,243,315.24x = 1,864,966.71 × 1,074,321.31
4. Step 4: Simplify right side
   1,243,315.24x = 2,003,573,478,993.59
5. Step 5: Solve for x
   x = 2,003,573,478,993.59/1,243,315.24
6. Step 6: Final answer
   x = 1,611,476.65