Finding the Fourth Proportional to 1,880.78, 2,823.00 and 907.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.78 : 2,823.00 = 907.57 : x
2. Step 2: Convert to fraction form
   1,880.78/2,823.00 = 907.57/x
3. Step 3: Cross multiply
   1,880.78x = 2,823.00 × 907.57
4. Step 4: Simplify right side
   1,880.78x = 2,562,051.46
5. Step 5: Solve for x
   x = 2,562,051.46/1,880.78
6. Step 6: Final answer
   x = 1,362.23