Finding the Fourth Proportional to 2,662.61, 3,670.82 and 1,864.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.61 : 3,670.82 = 1,864.86 : x
2. Step 2: Convert to fraction form
   2,662.61/3,670.82 = 1,864.86/x
3. Step 3: Cross multiply
   2,662.61x = 3,670.82 × 1,864.86
4. Step 4: Simplify right side
   2,662.61x = 6,845,537.71
5. Step 5: Solve for x
   x = 6,845,537.71/2,662.61
6. Step 6: Final answer
   x = 2,570.99