Finding the Fourth Proportional to 2,156.74, 2,976.66 and 1,802.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.74 : 2,976.66 = 1,802.17 : x
2. Step 2: Convert to fraction form
   2,156.74/2,976.66 = 1,802.17/x
3. Step 3: Cross multiply
   2,156.74x = 2,976.66 × 1,802.17
4. Step 4: Simplify right side
   2,156.74x = 5,364,447.35
5. Step 5: Solve for x
   x = 5,364,447.35/2,156.74
6. Step 6: Final answer
   x = 2,487.29