Finding the Fourth Proportional to 2,505.12, 3,756.51 and 945.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.12 : 3,756.51 = 945.06 : x
2. Step 2: Convert to fraction form
   2,505.12/3,756.51 = 945.06/x
3. Step 3: Cross multiply
   2,505.12x = 3,756.51 × 945.06
4. Step 4: Simplify right side
   2,505.12x = 3,550,127.34
5. Step 5: Solve for x
   x = 3,550,127.34/2,505.12
6. Step 6: Final answer
   x = 1,417.15