Finding the Fourth Proportional to 1,770.42, 2,653.47 and 614.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.42 : 2,653.47 = 614.82 : x
2. Step 2: Convert to fraction form
   1,770.42/2,653.47 = 614.82/x
3. Step 3: Cross multiply
   1,770.42x = 2,653.47 × 614.82
4. Step 4: Simplify right side
   1,770.42x = 1,631,406.43
5. Step 5: Solve for x
   x = 1,631,406.43/1,770.42
6. Step 6: Final answer
   x = 921.48