Finding the Fourth Proportional to 2,045.52, 3,065.40 and 1,071.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.52 : 3,065.40 = 1,071.12 : x
2. Step 2: Convert to fraction form
   2,045.52/3,065.40 = 1,071.12/x
3. Step 3: Cross multiply
   2,045.52x = 3,065.40 × 1,071.12
4. Step 4: Simplify right side
   2,045.52x = 3,283,411.25
5. Step 5: Solve for x
   x = 3,283,411.25/2,045.52
6. Step 6: Final answer
   x = 1,605.17