Finding the Fourth Proportional to 1,948.42, 2,904.59 and 1,918.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.42 : 2,904.59 = 1,918.45 : x
2. Step 2: Convert to fraction form
   1,948.42/2,904.59 = 1,918.45/x
3. Step 3: Cross multiply
   1,948.42x = 2,904.59 × 1,918.45
4. Step 4: Simplify right side
   1,948.42x = 5,572,293.83
5. Step 5: Solve for x
   x = 5,572,293.83/1,948.42
6. Step 6: Final answer
   x = 2,859.91