Finding the Fourth Proportional to 1,402.53, 1,935.59 and 1,070.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.53 : 1,935.59 = 1,070.38 : x
2. Step 2: Convert to fraction form
   1,402.53/1,935.59 = 1,070.38/x
3. Step 3: Cross multiply
   1,402.53x = 1,935.59 × 1,070.38
4. Step 4: Simplify right side
   1,402.53x = 2,071,816.82
5. Step 5: Solve for x
   x = 2,071,816.82/1,402.53
6. Step 6: Final answer
   x = 1,477.20