Finding the Fourth Proportional to 2,507.78, 3,460.64 and 1,445.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.78 : 3,460.64 = 1,445.33 : x
2. Step 2: Convert to fraction form
   2,507.78/3,460.64 = 1,445.33/x
3. Step 3: Cross multiply
   2,507.78x = 3,460.64 × 1,445.33
4. Step 4: Simplify right side
   2,507.78x = 5,001,742.28
5. Step 5: Solve for x
   x = 5,001,742.28/2,507.78
6. Step 6: Final answer
   x = 1,994.49