Finding the Fourth Proportional to 2,613.48, 3,918.96 and 881.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.48 : 3,918.96 = 881.52 : x
2. Step 2: Convert to fraction form
   2,613.48/3,918.96 = 881.52/x
3. Step 3: Cross multiply
   2,613.48x = 3,918.96 × 881.52
4. Step 4: Simplify right side
   2,613.48x = 3,454,641.62
5. Step 5: Solve for x
   x = 3,454,641.62/2,613.48
6. Step 6: Final answer
   x = 1,321.86