Finding the Fourth Proportional to 1,412.93, 1,948.07 and 907.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.93 : 1,948.07 = 907.89 : x
2. Step 2: Convert to fraction form
   1,412.93/1,948.07 = 907.89/x
3. Step 3: Cross multiply
   1,412.93x = 1,948.07 × 907.89
4. Step 4: Simplify right side
   1,412.93x = 1,768,635.54
5. Step 5: Solve for x
   x = 1,768,635.54/1,412.93
6. Step 6: Final answer
   x = 1,251.75