Finding the Fourth Proportional to 1,507.42, 2,250.86 and 1,330.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.42 : 2,250.86 = 1,330.24 : x
2. Step 2: Convert to fraction form
   1,507.42/2,250.86 = 1,330.24/x
3. Step 3: Cross multiply
   1,507.42x = 2,250.86 × 1,330.24
4. Step 4: Simplify right side
   1,507.42x = 2,994,187.33
5. Step 5: Solve for x
   x = 2,994,187.33/1,507.42
6. Step 6: Final answer
   x = 1,986.31