Finding the Fourth Proportional to 1,914.72, 2,641.84 and 1,117.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914.72 : 2,641.84 = 1,117.81 : x
2. Step 2: Convert to fraction form
   1,914.72/2,641.84 = 1,117.81/x
3. Step 3: Cross multiply
   1,914.72x = 2,641.84 × 1,117.81
4. Step 4: Simplify right side
   1,914.72x = 2,953,075.17
5. Step 5: Solve for x
   x = 2,953,075.17/1,914.72
6. Step 6: Final answer
   x = 1,542.30