Finding the Fourth Proportional to 2,148.84, 3,215.94 and 1,802.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.84 : 3,215.94 = 1,802.56 : x
2. Step 2: Convert to fraction form
   2,148.84/3,215.94 = 1,802.56/x
3. Step 3: Cross multiply
   2,148.84x = 3,215.94 × 1,802.56
4. Step 4: Simplify right side
   2,148.84x = 5,796,924.81
5. Step 5: Solve for x
   x = 5,796,924.81/2,148.84
6. Step 6: Final answer
   x = 2,697.70