Finding the Fourth Proportional to 1,573.50, 2,360.56 and 881.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,573.50 : 2,360.56 = 881.15 : x
2. Step 2: Convert to fraction form
   1,573.50/2,360.56 = 881.15/x
3. Step 3: Cross multiply
   1,573.50x = 2,360.56 × 881.15
4. Step 4: Simplify right side
   1,573.50x = 2,079,999.34
5. Step 5: Solve for x
   x = 2,079,999.34/1,573.50
6. Step 6: Final answer
   x = 1,321.90