Finding the Fourth Proportional to 1,433,351.58, 1,978,106.85 and 821,606.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,351.58 : 1,978,106.85 = 821,606.10 : x
2. Step 2: Convert to fraction form
   1,433,351.58/1,978,106.85 = 821,606.10/x
3. Step 3: Cross multiply
   1,433,351.58x = 1,978,106.85 × 821,606.10
4. Step 4: Simplify right side
   1,433,351.58x = 1,625,224,654,411.79
5. Step 5: Solve for x
   x = 1,625,224,654,411.79/1,433,351.58
6. Step 6: Final answer
   x = 1,133,863.23