Finding the Fourth Proportional to 1,443,510.63, 1,991,869.92 and 831,863.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,510.63 : 1,991,869.92 = 831,863.84 : x
2. Step 2: Convert to fraction form
   1,443,510.63/1,991,869.92 = 831,863.84/x
3. Step 3: Cross multiply
   1,443,510.63x = 1,991,869.92 × 831,863.84
4. Step 4: Simplify right side
   1,443,510.63x = 1,656,964,550,472.34
5. Step 5: Solve for x
   x = 1,656,964,550,472.34/1,443,510.63
6. Step 6: Final answer
   x = 1,147,871.39