Finding the Fourth Proportional to 2,751.39, 4,116.72 and 1,931.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,751.39 : 4,116.72 = 1,931.25 : x
2. Step 2: Convert to fraction form
   2,751.39/4,116.72 = 1,931.25/x
3. Step 3: Cross multiply
   2,751.39x = 4,116.72 × 1,931.25
4. Step 4: Simplify right side
   2,751.39x = 7,950,415.50
5. Step 5: Solve for x
   x = 7,950,415.50/2,751.39
6. Step 6: Final answer
   x = 2,889.60