Finding the Fourth Proportional to 2,089.18, 3,128.94 and 1,045.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.18 : 3,128.94 = 1,045.96 : x
2. Step 2: Convert to fraction form
   2,089.18/3,128.94 = 1,045.96/x
3. Step 3: Cross multiply
   2,089.18x = 3,128.94 × 1,045.96
4. Step 4: Simplify right side
   2,089.18x = 3,272,746.08
5. Step 5: Solve for x
   x = 3,272,746.08/2,089.18
6. Step 6: Final answer
   x = 1,566.52