Finding the Fourth Proportional to 1,560.18, 2,152.76 and 897.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,560.18 : 2,152.76 = 897.06 : x
2. Step 2: Convert to fraction form
   1,560.18/2,152.76 = 897.06/x
3. Step 3: Cross multiply
   1,560.18x = 2,152.76 × 897.06
4. Step 4: Simplify right side
   1,560.18x = 1,931,154.89
5. Step 5: Solve for x
   x = 1,931,154.89/1,560.18
6. Step 6: Final answer
   x = 1,237.78