Finding the Fourth Proportional to 1,569.86, 2,161.86 and 1,492.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,569.86 : 2,161.86 = 1,492.10 : x
2. Step 2: Convert to fraction form
   1,569.86/2,161.86 = 1,492.10/x
3. Step 3: Cross multiply
   1,569.86x = 2,161.86 × 1,492.10
4. Step 4: Simplify right side
   1,569.86x = 3,225,711.31
5. Step 5: Solve for x
   x = 3,225,711.31/1,569.86
6. Step 6: Final answer
   x = 2,054.78