Finding the Fourth Proportional to 1,736.80, 2,379.56 and 1,712.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.80 : 2,379.56 = 1,712.50 : x
2. Step 2: Convert to fraction form
   1,736.80/2,379.56 = 1,712.50/x
3. Step 3: Cross multiply
   1,736.80x = 2,379.56 × 1,712.50
4. Step 4: Simplify right side
   1,736.80x = 4,074,996.50
5. Step 5: Solve for x
   x = 4,074,996.50/1,736.80
6. Step 6: Final answer
   x = 2,346.27