Finding the Fourth Proportional to 1,411.07, 1,948.15 and 907.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.07 : 1,948.15 = 907.12 : x
2. Step 2: Convert to fraction form
   1,411.07/1,948.15 = 907.12/x
3. Step 3: Cross multiply
   1,411.07x = 1,948.15 × 907.12
4. Step 4: Simplify right side
   1,411.07x = 1,767,198.69
5. Step 5: Solve for x
   x = 1,767,198.69/1,411.07
6. Step 6: Final answer
   x = 1,252.39