Finding the Fourth Proportional to 1,915.11, 2,642.72 and 1,075.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915.11 : 2,642.72 = 1,075.77 : x
2. Step 2: Convert to fraction form
   1,915.11/2,642.72 = 1,075.77/x
3. Step 3: Cross multiply
   1,915.11x = 2,642.72 × 1,075.77
4. Step 4: Simplify right side
   1,915.11x = 2,842,953.52
5. Step 5: Solve for x
   x = 2,842,953.52/1,915.11
6. Step 6: Final answer
   x = 1,484.49