Finding the Fourth Proportional to 1,700.78, 2,346.72 and 1,112.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,700.78 : 2,346.72 = 1,112.18 : x
2. Step 2: Convert to fraction form
   1,700.78/2,346.72 = 1,112.18/x
3. Step 3: Cross multiply
   1,700.78x = 2,346.72 × 1,112.18
4. Step 4: Simplify right side
   1,700.78x = 2,609,975.05
5. Step 5: Solve for x
   x = 2,609,975.05/1,700.78
6. Step 6: Final answer
   x = 1,534.58