Finding the Fourth Proportional to 1,983.78, 2,977.52 and 1,010.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.78 : 2,977.52 = 1,010.61 : x
2. Step 2: Convert to fraction form
   1,983.78/2,977.52 = 1,010.61/x
3. Step 3: Cross multiply
   1,983.78x = 2,977.52 × 1,010.61
4. Step 4: Simplify right side
   1,983.78x = 3,009,106.43
5. Step 5: Solve for x
   x = 3,009,106.43/1,983.78
6. Step 6: Final answer
   x = 1,516.85