Finding the Fourth Proportional to 1,561.84, 2,152.52 and 1,294.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561.84 : 2,152.52 = 1,294.88 : x
2. Step 2: Convert to fraction form
   1,561.84/2,152.52 = 1,294.88/x
3. Step 3: Cross multiply
   1,561.84x = 2,152.52 × 1,294.88
4. Step 4: Simplify right side
   1,561.84x = 2,787,237.86
5. Step 5: Solve for x
   x = 2,787,237.86/1,561.84
6. Step 6: Final answer
   x = 1,784.59