Finding the Fourth Proportional to 2,557.95, 3,528.86 and 1,612.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.95 : 3,528.86 = 1,612.98 : x
2. Step 2: Convert to fraction form
   2,557.95/3,528.86 = 1,612.98/x
3. Step 3: Cross multiply
   2,557.95x = 3,528.86 × 1,612.98
4. Step 4: Simplify right side
   2,557.95x = 5,691,980.60
5. Step 5: Solve for x
   x = 5,691,980.60/2,557.95
6. Step 6: Final answer
   x = 2,225.21