Finding the Fourth Proportional to 2,140, 3,210.56 and 1,554.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140 : 3,210.56 = 1,554.72 : x
2. Step 2: Convert to fraction form
   2,140/3,210.56 = 1,554.72/x
3. Step 3: Cross multiply
   2,140x = 3,210.56 × 1,554.72
4. Step 4: Simplify right side
   2,140x = 4,991,521.84
5. Step 5: Solve for x
   x = 4,991,521.84/2,140
6. Step 6: Final answer
   x = 2,332.49