Finding the Fourth Proportional to 2,056.50, 3,085.92 and 1,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.50 : 3,085.92 = 1,570.50 : x
2. Step 2: Convert to fraction form
   2,056.50/3,085.92 = 1,570.50/x
3. Step 3: Cross multiply
   2,056.50x = 3,085.92 × 1,570.50
4. Step 4: Simplify right side
   2,056.50x = 4,846,437.36
5. Step 5: Solve for x
   x = 4,846,437.36/2,056.50
6. Step 6: Final answer
   x = 2,356.64