Finding the Fourth Proportional to 1,757.42, 2,425.15 and 1,011.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,757.42 : 2,425.15 = 1,011.21 : x
2. Step 2: Convert to fraction form
   1,757.42/2,425.15 = 1,011.21/x
3. Step 3: Cross multiply
   1,757.42x = 2,425.15 × 1,011.21
4. Step 4: Simplify right side
   1,757.42x = 2,452,327.34
5. Step 5: Solve for x
   x = 2,452,327.34/1,757.42
6. Step 6: Final answer
   x = 1,395.41