Finding the Fourth Proportional to 1,141.51, 1,709.50 and 653.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.51 : 1,709.50 = 653.08 : x
2. Step 2: Convert to fraction form
   1,141.51/1,709.50 = 653.08/x
3. Step 3: Cross multiply
   1,141.51x = 1,709.50 × 653.08
4. Step 4: Simplify right side
   1,141.51x = 1,116,428.45
5. Step 5: Solve for x
   x = 1,116,428.45/1,141.51
6. Step 6: Final answer
   x = 978.03