Finding the Fourth Proportional to 1,820.90, 2,510.93 and 1,442.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.90 : 2,510.93 = 1,442.18 : x
2. Step 2: Convert to fraction form
   1,820.90/2,510.93 = 1,442.18/x
3. Step 3: Cross multiply
   1,820.90x = 2,510.93 × 1,442.18
4. Step 4: Simplify right side
   1,820.90x = 3,621,222.91
5. Step 5: Solve for x
   x = 3,621,222.91/1,820.90
6. Step 6: Final answer
   x = 1,988.70