Finding the Fourth Proportional to 1,627.17, 2,245.50 and 881.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.17 : 2,245.50 = 881.13 : x
2. Step 2: Convert to fraction form
   1,627.17/2,245.50 = 881.13/x
3. Step 3: Cross multiply
   1,627.17x = 2,245.50 × 881.13
4. Step 4: Simplify right side
   1,627.17x = 1,978,573.01
5. Step 5: Solve for x
   x = 1,978,573.01/1,627.17
6. Step 6: Final answer
   x = 1,215.96