Finding the Fourth Proportional to 1,443,455.27, 1,991,746.38 and 831,488.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,455.27 : 1,991,746.38 = 831,488.51 : x
2. Step 2: Convert to fraction form
   1,443,455.27/1,991,746.38 = 831,488.51/x
3. Step 3: Cross multiply
   1,443,455.27x = 1,991,746.38 × 831,488.51
4. Step 4: Simplify right side
   1,443,455.27x = 1,656,114,218,491.80
5. Step 5: Solve for x
   x = 1,656,114,218,491.80/1,443,455.27
6. Step 6: Final answer
   x = 1,147,326.31