Finding the Fourth Proportional to 2,585.58, 3,876.21 and 1,045.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585.58 : 3,876.21 = 1,045.50 : x
2. Step 2: Convert to fraction form
   2,585.58/3,876.21 = 1,045.50/x
3. Step 3: Cross multiply
   2,585.58x = 3,876.21 × 1,045.50
4. Step 4: Simplify right side
   2,585.58x = 4,052,577.56
5. Step 5: Solve for x
   x = 4,052,577.56/2,585.58
6. Step 6: Final answer
   x = 1,567.38