Finding the Fourth Proportional to 1,072.51, 1,607.31 and 610.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072.51 : 1,607.31 = 610.12 : x
2. Step 2: Convert to fraction form
   1,072.51/1,607.31 = 610.12/x
3. Step 3: Cross multiply
   1,072.51x = 1,607.31 × 610.12
4. Step 4: Simplify right side
   1,072.51x = 980,651.98
5. Step 5: Solve for x
   x = 980,651.98/1,072.51
6. Step 6: Final answer
   x = 914.35