Finding the Fourth Proportional to 2,042.95, 2,820.86 and 1,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.95 : 2,820.86 = 1,570.10 : x
2. Step 2: Convert to fraction form
   2,042.95/2,820.86 = 1,570.10/x
3. Step 3: Cross multiply
   2,042.95x = 2,820.86 × 1,570.10
4. Step 4: Simplify right side
   2,042.95x = 4,429,032.29
5. Step 5: Solve for x
   x = 4,429,032.29/2,042.95
6. Step 6: Final answer
   x = 2,167.96