Finding the Fourth Proportional to 2,953.31, 4,405.01 and 2,781.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.31 : 4,405.01 = 2,781.99 : x
2. Step 2: Convert to fraction form
   2,953.31/4,405.01 = 2,781.99/x
3. Step 3: Cross multiply
   2,953.31x = 4,405.01 × 2,781.99
4. Step 4: Simplify right side
   2,953.31x = 12,254,679.86
5. Step 5: Solve for x
   x = 12,254,679.86/2,953.31
6. Step 6: Final answer
   x = 4,149.48