Finding the Fourth Proportional to 2,649.81, 3,656.04 and 1,587.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,649.81 : 3,656.04 = 1,587.30 : x
2. Step 2: Convert to fraction form
   2,649.81/3,656.04 = 1,587.30/x
3. Step 3: Cross multiply
   2,649.81x = 3,656.04 × 1,587.30
4. Step 4: Simplify right side
   2,649.81x = 5,803,212.63
5. Step 5: Solve for x
   x = 5,803,212.63/2,649.81
6. Step 6: Final answer
   x = 2,190.05