Finding the Fourth Proportional to 2,045.60, 3,069.30 and 1,071.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.60 : 3,069.30 = 1,071.47 : x
2. Step 2: Convert to fraction form
   2,045.60/3,069.30 = 1,071.47/x
3. Step 3: Cross multiply
   2,045.60x = 3,069.30 × 1,071.47
4. Step 4: Simplify right side
   2,045.60x = 3,288,663.05
5. Step 5: Solve for x
   x = 3,288,663.05/2,045.60
6. Step 6: Final answer
   x = 1,607.68