Finding the Fourth Proportional to 2,403.30, 3,316.50 and 1,355.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,403.30 : 3,316.50 = 1,355.34 : x
2. Step 2: Convert to fraction form
   2,403.30/3,316.50 = 1,355.34/x
3. Step 3: Cross multiply
   2,403.30x = 3,316.50 × 1,355.34
4. Step 4: Simplify right side
   2,403.30x = 4,494,985.11
5. Step 5: Solve for x
   x = 4,494,985.11/2,403.30
6. Step 6: Final answer
   x = 1,870.34