Finding the Fourth Proportional to 1,706.88, 2,558.94 and 1,570.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,706.88 : 2,558.94 = 1,570.20 : x
2. Step 2: Convert to fraction form
   1,706.88/2,558.94 = 1,570.20/x
3. Step 3: Cross multiply
   1,706.88x = 2,558.94 × 1,570.20
4. Step 4: Simplify right side
   1,706.88x = 4,018,047.59
5. Step 5: Solve for x
   x = 4,018,047.59/1,706.88
6. Step 6: Final answer
   x = 2,354.03