Finding the Fourth Proportional to 1,387.86, 2,084.52 and 1,349.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387.86 : 2,084.52 = 1,349.52 : x
2. Step 2: Convert to fraction form
   1,387.86/2,084.52 = 1,349.52/x
3. Step 3: Cross multiply
   1,387.86x = 2,084.52 × 1,349.52
4. Step 4: Simplify right side
   1,387.86x = 2,813,101.43
5. Step 5: Solve for x
   x = 2,813,101.43/1,387.86
6. Step 6: Final answer
   x = 2,026.93