Finding the Fourth Proportional to 2,156.16, 2,977.05 and 1,491.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.16 : 2,977.05 = 1,491.86 : x
2. Step 2: Convert to fraction form
   2,156.16/2,977.05 = 1,491.86/x
3. Step 3: Cross multiply
   2,156.16x = 2,977.05 × 1,491.86
4. Step 4: Simplify right side
   2,156.16x = 4,441,341.81
5. Step 5: Solve for x
   x = 4,441,341.81/2,156.16
6. Step 6: Final answer
   x = 2,059.84