Finding the Fourth Proportional to 2,335.90, 3,504.47 and 776.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,335.90 : 3,504.47 = 776.15 : x
2. Step 2: Convert to fraction form
   2,335.90/3,504.47 = 776.15/x
3. Step 3: Cross multiply
   2,335.90x = 3,504.47 × 776.15
4. Step 4: Simplify right side
   2,335.90x = 2,719,996.33
5. Step 5: Solve for x
   x = 2,719,996.33/2,335.90
6. Step 6: Final answer
   x = 1,164.43