Finding the Fourth Proportional to 1,637.55, 2,256.27 and 1,112.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,637.55 : 2,256.27 = 1,112.67 : x
2. Step 2: Convert to fraction form
   1,637.55/2,256.27 = 1,112.67/x
3. Step 3: Cross multiply
   1,637.55x = 2,256.27 × 1,112.67
4. Step 4: Simplify right side
   1,637.55x = 2,510,483.94
5. Step 5: Solve for x
   x = 2,510,483.94/1,637.55
6. Step 6: Final answer
   x = 1,533.07