Finding the Fourth Proportional to 2,854.89, 4,282.98 and 907.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,854.89 : 4,282.98 = 907.02 : x
2. Step 2: Convert to fraction form
   2,854.89/4,282.98 = 907.02/x
3. Step 3: Cross multiply
   2,854.89x = 4,282.98 × 907.02
4. Step 4: Simplify right side
   2,854.89x = 3,884,748.52
5. Step 5: Solve for x
   x = 3,884,748.52/2,854.89
6. Step 6: Final answer
   x = 1,360.73