Finding the Fourth Proportional to 2,056.16, 3,077.52 and 1,117.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.16 : 3,077.52 = 1,117.70 : x
2. Step 2: Convert to fraction form
   2,056.16/3,077.52 = 1,117.70/x
3. Step 3: Cross multiply
   2,056.16x = 3,077.52 × 1,117.70
4. Step 4: Simplify right side
   2,056.16x = 3,439,744.10
5. Step 5: Solve for x
   x = 3,439,744.10/2,056.16
6. Step 6: Final answer
   x = 1,672.90