Finding the Fourth Proportional to 5,781.12, 7,974.69 and 3,656.00

Step by Step Solution

1. Step 1: Write the proportion equation
   5,781.12 : 7,974.69 = 3,656.00 : x
2. Step 2: Convert to fraction form
   5,781.12/7,974.69 = 3,656.00/x
3. Step 3: Cross multiply
   5,781.12x = 7,974.69 × 3,656.00
4. Step 4: Simplify right side
   5,781.12x = 29,155,426.77
5. Step 5: Solve for x
   x = 29,155,426.77/5,781.12
6. Step 6: Final answer
   x = 5,043.21