Finding the Fourth Proportional to 2,101.84, 3,153.34 and 1,715.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.84 : 3,153.34 = 1,715.50 : x
2. Step 2: Convert to fraction form
   2,101.84/3,153.34 = 1,715.50/x
3. Step 3: Cross multiply
   2,101.84x = 3,153.34 × 1,715.50
4. Step 4: Simplify right side
   2,101.84x = 5,409,554.77
5. Step 5: Solve for x
   x = 5,409,554.77/2,101.84
6. Step 6: Final answer
   x = 2,573.72