Finding the Fourth Proportional to 1,573.47, 2,354.70 and 1,311.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,573.47 : 2,354.70 = 1,311.03 : x
2. Step 2: Convert to fraction form
   1,573.47/2,354.70 = 1,311.03/x
3. Step 3: Cross multiply
   1,573.47x = 2,354.70 × 1,311.03
4. Step 4: Simplify right side
   1,573.47x = 3,087,082.34
5. Step 5: Solve for x
   x = 3,087,082.34/1,573.47
6. Step 6: Final answer
   x = 1,961.96