Finding the Fourth Proportional to 2,045.16, 3,069.59 and 1,913.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.16 : 3,069.59 = 1,913.94 : x
2. Step 2: Convert to fraction form
   2,045.16/3,069.59 = 1,913.94/x
3. Step 3: Cross multiply
   2,045.16x = 3,069.59 × 1,913.94
4. Step 4: Simplify right side
   2,045.16x = 5,875,001.51
5. Step 5: Solve for x
   x = 5,875,001.51/2,045.16
6. Step 6: Final answer
   x = 2,872.64