Finding the Fourth Proportional to 2,602.56, 3,590.40 and 1,670.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.56 : 3,590.40 = 1,670.88 : x
2. Step 2: Convert to fraction form
   2,602.56/3,590.40 = 1,670.88/x
3. Step 3: Cross multiply
   2,602.56x = 3,590.40 × 1,670.88
4. Step 4: Simplify right side
   2,602.56x = 5,999,127.55
5. Step 5: Solve for x
   x = 5,999,127.55/2,602.56
6. Step 6: Final answer
   x = 2,305.09