Finding the Fourth Proportional to 3,575.63, 4,931.27 and 2,158.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,575.63 : 4,931.27 = 2,158.98 : x
2. Step 2: Convert to fraction form
   3,575.63/4,931.27 = 2,158.98/x
3. Step 3: Cross multiply
   3,575.63x = 4,931.27 × 2,158.98
4. Step 4: Simplify right side
   3,575.63x = 10,646,502.95
5. Step 5: Solve for x
   x = 10,646,502.95/3,575.63
6. Step 6: Final answer
   x = 2,977.52