Finding the Fourth Proportional to 1,641.53, 2,263.83 and 1,267.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.53 : 2,263.83 = 1,267.94 : x
2. Step 2: Convert to fraction form
   1,641.53/2,263.83 = 1,267.94/x
3. Step 3: Cross multiply
   1,641.53x = 2,263.83 × 1,267.94
4. Step 4: Simplify right side
   1,641.53x = 2,870,400.61
5. Step 5: Solve for x
   x = 2,870,400.61/1,641.53
6. Step 6: Final answer
   x = 1,748.61