Finding the Fourth Proportional to 1,810.96, 2,715.16 and 933.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.96 : 2,715.16 = 933.72 : x
2. Step 2: Convert to fraction form
   1,810.96/2,715.16 = 933.72/x
3. Step 3: Cross multiply
   1,810.96x = 2,715.16 × 933.72
4. Step 4: Simplify right side
   1,810.96x = 2,535,199.20
5. Step 5: Solve for x
   x = 2,535,199.20/1,810.96
6. Step 6: Final answer
   x = 1,399.92