Finding the Fourth Proportional to 3,402.89, 5,105.91 and 1,554.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,402.89 : 5,105.91 = 1,554.57 : x
2. Step 2: Convert to fraction form
   3,402.89/5,105.91 = 1,554.57/x
3. Step 3: Cross multiply
   3,402.89x = 5,105.91 × 1,554.57
4. Step 4: Simplify right side
   3,402.89x = 7,937,494.51
5. Step 5: Solve for x
   x = 7,937,494.51/3,402.89
6. Step 6: Final answer
   x = 2,332.57