Finding the Fourth Proportional to 2,612.84, 3,920.81 and 1,053.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.84 : 3,920.81 = 1,053.59 : x
2. Step 2: Convert to fraction form
   2,612.84/3,920.81 = 1,053.59/x
3. Step 3: Cross multiply
   2,612.84x = 3,920.81 × 1,053.59
4. Step 4: Simplify right side
   2,612.84x = 4,130,926.21
5. Step 5: Solve for x
   x = 4,130,926.21/2,612.84
6. Step 6: Final answer
   x = 1,581.01