Finding the Fourth Proportional to 1,353.56, 1,868.76 and 981.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.56 : 1,868.76 = 981.74 : x
2. Step 2: Convert to fraction form
   1,353.56/1,868.76 = 981.74/x
3. Step 3: Cross multiply
   1,353.56x = 1,868.76 × 981.74
4. Step 4: Simplify right side
   1,353.56x = 1,834,636.44
5. Step 5: Solve for x
   x = 1,834,636.44/1,353.56
6. Step 6: Final answer
   x = 1,355.42