Finding the Fourth Proportional to 1,706.35, 2,556.82 and 1,242.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,706.35 : 2,556.82 = 1,242.00 : x
2. Step 2: Convert to fraction form
   1,706.35/2,556.82 = 1,242.00/x
3. Step 3: Cross multiply
   1,706.35x = 2,556.82 × 1,242.00
4. Step 4: Simplify right side
   1,706.35x = 3,175,551.45
5. Step 5: Solve for x
   x = 3,175,551.45/1,706.35
6. Step 6: Final answer
   x = 1,861.02