Finding the Fourth Proportional to 1,970.16, 2,951.47 and 1,904.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,970.16 : 2,951.47 = 1,904.23 : x
2. Step 2: Convert to fraction form
   1,970.16/2,951.47 = 1,904.23/x
3. Step 3: Cross multiply
   1,970.16x = 2,951.47 × 1,904.23
4. Step 4: Simplify right side
   1,970.16x = 5,620,277.72
5. Step 5: Solve for x
   x = 5,620,277.72/1,970.16
6. Step 6: Final answer
   x = 2,852.70