Finding the Fourth Proportional to 1,518.86, 2,096.52 and 987.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,518.86 : 2,096.52 = 987.86 : x
2. Step 2: Convert to fraction form
   1,518.86/2,096.52 = 987.86/x
3. Step 3: Cross multiply
   1,518.86x = 2,096.52 × 987.86
4. Step 4: Simplify right side
   1,518.86x = 2,071,068.25
5. Step 5: Solve for x
   x = 2,071,068.25/1,518.86
6. Step 6: Final answer
   x = 1,363.57