Finding the Fourth Proportional to 2,275.45, 3,130.72 and 1,777.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.45 : 3,130.72 = 1,777.22 : x
2. Step 2: Convert to fraction form
   2,275.45/3,130.72 = 1,777.22/x
3. Step 3: Cross multiply
   2,275.45x = 3,130.72 × 1,777.22
4. Step 4: Simplify right side
   2,275.45x = 5,563,976.51
5. Step 5: Solve for x
   x = 5,563,976.51/2,275.45
6. Step 6: Final answer
   x = 2,445.22