Finding the Fourth Proportional to 5,782.89, 7,980.53 and 3,545.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,782.89 : 7,980.53 = 3,545.98 : x
2. Step 2: Convert to fraction form
   5,782.89/7,980.53 = 3,545.98/x
3. Step 3: Cross multiply
   5,782.89x = 7,980.53 × 3,545.98
4. Step 4: Simplify right side
   5,782.89x = 28,298,762.09
5. Step 5: Solve for x
   x = 28,298,762.09/5,782.89
6. Step 6: Final answer
   x = 4,893.53