Finding the Fourth Proportional to 1,283,401.89, 1,771,108.61 and 710,451.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,401.89 : 1,771,108.61 = 710,451.63 : x
2. Step 2: Convert to fraction form
   1,283,401.89/1,771,108.61 = 710,451.63/x
3. Step 3: Cross multiply
   1,283,401.89x = 1,771,108.61 × 710,451.63
4. Step 4: Simplify right side
   1,283,401.89x = 1,258,286,995,329.28
5. Step 5: Solve for x
   x = 1,258,286,995,329.28/1,283,401.89
6. Step 6: Final answer
   x = 980,431.00