Finding the Fourth Proportional to 1,901.63, 2,624.69 and 1,115.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,901.63 : 2,624.69 = 1,115.93 : x
2. Step 2: Convert to fraction form
   1,901.63/2,624.69 = 1,115.93/x
3. Step 3: Cross multiply
   1,901.63x = 2,624.69 × 1,115.93
4. Step 4: Simplify right side
   1,901.63x = 2,928,970.31
5. Step 5: Solve for x
   x = 2,928,970.31/1,901.63
6. Step 6: Final answer
   x = 1,540.24