Finding the Fourth Proportional to 1,590.80, 2,196.06 and 1,060.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590.80 : 2,196.06 = 1,060.56 : x
2. Step 2: Convert to fraction form
   1,590.80/2,196.06 = 1,060.56/x
3. Step 3: Cross multiply
   1,590.80x = 2,196.06 × 1,060.56
4. Step 4: Simplify right side
   1,590.80x = 2,329,053.39
5. Step 5: Solve for x
   x = 2,329,053.39/1,590.80
6. Step 6: Final answer
   x = 1,464.08