Finding the Fourth Proportional to 1,142.98, 1,713.51 and 914.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142.98 : 1,713.51 = 914.50 : x
2. Step 2: Convert to fraction form
   1,142.98/1,713.51 = 914.50/x
3. Step 3: Cross multiply
   1,142.98x = 1,713.51 × 914.50
4. Step 4: Simplify right side
   1,142.98x = 1,567,004.90
5. Step 5: Solve for x
   x = 1,567,004.90/1,142.98
6. Step 6: Final answer
   x = 1,370.98