Finding the Fourth Proportional to 2,085.56, 3,126.70 and 1,045.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.56 : 3,126.70 = 1,045.06 : x
2. Step 2: Convert to fraction form
   2,085.56/3,126.70 = 1,045.06/x
3. Step 3: Cross multiply
   2,085.56x = 3,126.70 × 1,045.06
4. Step 4: Simplify right side
   2,085.56x = 3,267,589.10
5. Step 5: Solve for x
   x = 3,267,589.10/2,085.56
6. Step 6: Final answer
   x = 1,566.77