Finding the Fourth Proportional to 1,913.94, 2,870.61 and 527.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.94 : 2,870.61 = 527.38 : x
2. Step 2: Convert to fraction form
   1,913.94/2,870.61 = 527.38/x
3. Step 3: Cross multiply
   1,913.94x = 2,870.61 × 527.38
4. Step 4: Simplify right side
   1,913.94x = 1,513,902.30
5. Step 5: Solve for x
   x = 1,513,902.30/1,913.94
6. Step 6: Final answer
   x = 790.99