Finding the Fourth Proportional to 2,573.67, 3,858.23 and 907.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.67 : 3,858.23 = 907.55 : x
2. Step 2: Convert to fraction form
   2,573.67/3,858.23 = 907.55/x
3. Step 3: Cross multiply
   2,573.67x = 3,858.23 × 907.55
4. Step 4: Simplify right side
   2,573.67x = 3,501,555.79
5. Step 5: Solve for x
   x = 3,501,555.79/2,573.67
6. Step 6: Final answer
   x = 1,360.53