Finding the Fourth Proportional to 1,771.72, 2,445.86 and 1,372.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,771.72 : 2,445.86 = 1,372.49 : x
2. Step 2: Convert to fraction form
   1,771.72/2,445.86 = 1,372.49/x
3. Step 3: Cross multiply
   1,771.72x = 2,445.86 × 1,372.49
4. Step 4: Simplify right side
   1,771.72x = 3,356,918.39
5. Step 5: Solve for x
   x = 3,356,918.39/1,771.72
6. Step 6: Final answer
   x = 1,894.72