Finding the Fourth Proportional to 1,401.88, 2,102.54 and 477.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.88 : 2,102.54 = 477.43 : x
2. Step 2: Convert to fraction form
   1,401.88/2,102.54 = 477.43/x
3. Step 3: Cross multiply
   1,401.88x = 2,102.54 × 477.43
4. Step 4: Simplify right side
   1,401.88x = 1,003,805.16
5. Step 5: Solve for x
   x = 1,003,805.16/1,401.88
6. Step 6: Final answer
   x = 716.04