Finding the Fourth Proportional to 2,602.78, 3,590.61 and 1,554.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.78 : 3,590.61 = 1,554.76 : x
2. Step 2: Convert to fraction form
   2,602.78/3,590.61 = 1,554.76/x
3. Step 3: Cross multiply
   2,602.78x = 3,590.61 × 1,554.76
4. Step 4: Simplify right side
   2,602.78x = 5,582,536.80
5. Step 5: Solve for x
   x = 5,582,536.80/2,602.78
6. Step 6: Final answer
   x = 2,144.84