Finding the Fourth Proportional to 2,335.89, 3,503.90 and 874.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,335.89 : 3,503.90 = 874.76 : x
2. Step 2: Convert to fraction form
   2,335.89/3,503.90 = 874.76/x
3. Step 3: Cross multiply
   2,335.89x = 3,503.90 × 874.76
4. Step 4: Simplify right side
   2,335.89x = 3,065,071.56
5. Step 5: Solve for x
   x = 3,065,071.56/2,335.89
6. Step 6: Final answer
   x = 1,312.16