Finding the Fourth Proportional to 1,327.46, 1,830.42 and 907.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,327.46 : 1,830.42 = 907.88 : x
2. Step 2: Convert to fraction form
   1,327.46/1,830.42 = 907.88/x
3. Step 3: Cross multiply
   1,327.46x = 1,830.42 × 907.88
4. Step 4: Simplify right side
   1,327.46x = 1,661,792.56
5. Step 5: Solve for x
   x = 1,661,792.56/1,327.46
6. Step 6: Final answer
   x = 1,251.86