Finding the Fourth Proportional to 1,801,780.56, 2,703,735.76 and 665,338.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801,780.56 : 2,703,735.76 = 665,338.72 : x
2. Step 2: Convert to fraction form
   1,801,780.56/2,703,735.76 = 665,338.72/x
3. Step 3: Cross multiply
   1,801,780.56x = 2,703,735.76 × 665,338.72
4. Step 4: Simplify right side
   1,801,780.56x = 1,798,900,089,776.63
5. Step 5: Solve for x
   x = 1,798,900,089,776.63/1,801,780.56
6. Step 6: Final answer
   x = 998,401.32