Finding the Fourth Proportional to 2,602.06, 3,590.76 and 1,423.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.06 : 3,590.76 = 1,423.12 : x
2. Step 2: Convert to fraction form
   2,602.06/3,590.76 = 1,423.12/x
3. Step 3: Cross multiply
   2,602.06x = 3,590.76 × 1,423.12
4. Step 4: Simplify right side
   2,602.06x = 5,110,082.37
5. Step 5: Solve for x
   x = 5,110,082.37/2,602.06
6. Step 6: Final answer
   x = 1,963.86