Finding the Fourth Proportional to 1,820.23, 2,507.91 and 1,520.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.23 : 2,507.91 = 1,520.38 : x
2. Step 2: Convert to fraction form
   1,820.23/2,507.91 = 1,520.38/x
3. Step 3: Cross multiply
   1,820.23x = 2,507.91 × 1,520.38
4. Step 4: Simplify right side
   1,820.23x = 3,812,976.21
5. Step 5: Solve for x
   x = 3,812,976.21/1,820.23
6. Step 6: Final answer
   x = 2,094.78