Finding the Fourth Proportional to 1,627.07, 2,245.35 and 881.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.07 : 2,245.35 = 881.03 : x
2. Step 2: Convert to fraction form
   1,627.07/2,245.35 = 881.03/x
3. Step 3: Cross multiply
   1,627.07x = 2,245.35 × 881.03
4. Step 4: Simplify right side
   1,627.07x = 1,978,220.71
5. Step 5: Solve for x
   x = 1,978,220.71/1,627.07
6. Step 6: Final answer
   x = 1,215.82