Finding the Fourth Proportional to 1,740.47, 2,611.85 and 919.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740.47 : 2,611.85 = 919.32 : x
2. Step 2: Convert to fraction form
   1,740.47/2,611.85 = 919.32/x
3. Step 3: Cross multiply
   1,740.47x = 2,611.85 × 919.32
4. Step 4: Simplify right side
   1,740.47x = 2,401,111.55
5. Step 5: Solve for x
   x = 2,401,111.55/1,740.47
6. Step 6: Final answer
   x = 1,379.58