Finding the Fourth Proportional to 1,521.38, 2,279.55 and 1,366.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.38 : 2,279.55 = 1,366.42 : x
2. Step 2: Convert to fraction form
   1,521.38/2,279.55 = 1,366.42/x
3. Step 3: Cross multiply
   1,521.38x = 2,279.55 × 1,366.42
4. Step 4: Simplify right side
   1,521.38x = 3,114,822.71
5. Step 5: Solve for x
   x = 3,114,822.71/1,521.38
6. Step 6: Final answer
   x = 2,047.37