Finding the Fourth Proportional to 2,558.50, 3,530.86 and 1,510.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.50 : 3,530.86 = 1,510.90 : x
2. Step 2: Convert to fraction form
   2,558.50/3,530.86 = 1,510.90/x
3. Step 3: Cross multiply
   2,558.50x = 3,530.86 × 1,510.90
4. Step 4: Simplify right side
   2,558.50x = 5,334,776.37
5. Step 5: Solve for x
   x = 5,334,776.37/2,558.50
6. Step 6: Final answer
   x = 2,085.12