Finding the Fourth Proportional to 2,003.16, 2,980.95 and 1,925.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.16 : 2,980.95 = 1,925.40 : x
2. Step 2: Convert to fraction form
   2,003.16/2,980.95 = 1,925.40/x
3. Step 3: Cross multiply
   2,003.16x = 2,980.95 × 1,925.40
4. Step 4: Simplify right side
   2,003.16x = 5,739,521.13
5. Step 5: Solve for x
   x = 5,739,521.13/2,003.16
6. Step 6: Final answer
   x = 2,865.23