Finding the Fourth Proportional to 1,839.60, 2,753.64 and 1,374.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.60 : 2,753.64 = 1,374.72 : x
2. Step 2: Convert to fraction form
   1,839.60/2,753.64 = 1,374.72/x
3. Step 3: Cross multiply
   1,839.60x = 2,753.64 × 1,374.72
4. Step 4: Simplify right side
   1,839.60x = 3,785,483.98
5. Step 5: Solve for x
   x = 3,785,483.98/1,839.60
6. Step 6: Final answer
   x = 2,057.78