Finding the Fourth Proportional to 2,621.84, 3,617.64 and 1,573.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.84 : 3,617.64 = 1,573.52 : x
2. Step 2: Convert to fraction form
   2,621.84/3,617.64 = 1,573.52/x
3. Step 3: Cross multiply
   2,621.84x = 3,617.64 × 1,573.52
4. Step 4: Simplify right side
   2,621.84x = 5,692,428.89
5. Step 5: Solve for x
   x = 5,692,428.89/2,621.84
6. Step 6: Final answer
   x = 2,171.16