Finding the Fourth Proportional to 2,635.86, 3,953.91 and 881.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.86 : 3,953.91 = 881.00 : x
2. Step 2: Convert to fraction form
   2,635.86/3,953.91 = 881.00/x
3. Step 3: Cross multiply
   2,635.86x = 3,953.91 × 881.00
4. Step 4: Simplify right side
   2,635.86x = 3,483,374.94
5. Step 5: Solve for x
   x = 3,483,374.94/2,635.86
6. Step 6: Final answer
   x = 1,321.53