Finding the Fourth Proportional to 1,526.17, 2,286.89 and 1,058.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,526.17 : 2,286.89 = 1,058.56 : x
2. Step 2: Convert to fraction form
   1,526.17/2,286.89 = 1,058.56/x
3. Step 3: Cross multiply
   1,526.17x = 2,286.89 × 1,058.56
4. Step 4: Simplify right side
   1,526.17x = 2,420,804.56
5. Step 5: Solve for x
   x = 2,420,804.56/1,526.17
6. Step 6: Final answer
   x = 1,586.19