Finding the Fourth Proportional to 1,433,015.69, 2,146,638.42 and 663,428.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,015.69 : 2,146,638.42 = 663,428.61 : x
2. Step 2: Convert to fraction form
   1,433,015.69/2,146,638.42 = 663,428.61/x
3. Step 3: Cross multiply
   1,433,015.69x = 2,146,638.42 × 663,428.61
4. Step 4: Simplify right side
   1,433,015.69x = 1,424,141,343,153.20
5. Step 5: Solve for x
   x = 1,424,141,343,153.20/1,433,015.69
6. Step 6: Final answer
   x = 993,807.23