Finding the Fourth Proportional to 1,401.44, 2,100.54 and 752.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.44 : 2,100.54 = 752.63 : x
2. Step 2: Convert to fraction form
   1,401.44/2,100.54 = 752.63/x
3. Step 3: Cross multiply
   1,401.44x = 2,100.54 × 752.63
4. Step 4: Simplify right side
   1,401.44x = 1,580,929.42
5. Step 5: Solve for x
   x = 1,580,929.42/1,401.44
6. Step 6: Final answer
   x = 1,128.07