Finding the Fourth Proportional to 1,610.42, 2,414.54 and 907.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.42 : 2,414.54 = 907.67 : x
2. Step 2: Convert to fraction form
   1,610.42/2,414.54 = 907.67/x
3. Step 3: Cross multiply
   1,610.42x = 2,414.54 × 907.67
4. Step 4: Simplify right side
   1,610.42x = 2,191,613.83
5. Step 5: Solve for x
   x = 2,191,613.83/1,610.42
6. Step 6: Final answer
   x = 1,360.90