Finding the Fourth Proportional to 1,369.88, 2,055.41 and 907.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.88 : 2,055.41 = 907.82 : x
2. Step 2: Convert to fraction form
   1,369.88/2,055.41 = 907.82/x
3. Step 3: Cross multiply
   1,369.88x = 2,055.41 × 907.82
4. Step 4: Simplify right side
   1,369.88x = 1,865,937.77
5. Step 5: Solve for x
   x = 1,865,937.77/1,369.88
6. Step 6: Final answer
   x = 1,362.12